/* roulang page: index */
:root{
  --brand:#2C6EAA;
  --brand-hover:#235A8C;
  --brand-active:#1C4A75;
  --brand-soft:#EAF2FA;
  --sand:#D99A2B;
  --teal:#1F9E8A;
  --ink:#17202E;
  --muted:#55637A;
  --line:#E3E9F2;
  --page:#F7F9FC;
  --card:#FFFFFF;
  --r-card:16px;
  --r-btn:10px;
  --r-img:12px;
  --sd-card:0 1px 2px rgba(23,32,46,.04), 0 10px 28px -14px rgba(23,32,46,.14);
  --sd-hover:0 16px 34px -14px rgba(23,32,46,.22);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--page);
  color:var(--ink);
  font-family:system-ui,-apple-system,"PingFang SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none}
a{color:var(--brand);text-decoration:none;transition:color .18s ease-out}
a:hover{color:var(--brand-hover)}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:700}
p{margin:0}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
.num{font-variant-numeric:tabular-nums}
.section{padding:64px 0}
.section-tight{padding:44px 0}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--brand);
  background:var(--brand-soft);border-radius:999px;padding:6px 14px;letter-spacing:.02em;
}
.sec-title{font-size:clamp(22px,2.4vw,30px);font-weight:600;letter-spacing:-.01em}
.sec-sub{color:var(--muted);font-size:15px;margin-top:10px;max-width:720px}
.head-row{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:34px}

/* 公告条 */
.notice-bar{background:var(--brand-soft);border-bottom:1px solid var(--line)}
.notice-inner{display:flex;align-items:center;gap:12px;min-height:38px;font-size:13px;color:var(--brand-active)}
.notice-inner i{color:var(--brand)}
.notice-close{margin-left:auto;color:var(--muted);font-size:14px;line-height:1;padding:8px;border-radius:8px}
.notice-close:hover{color:var(--brand);background:rgba(44,110,170,.08)}

/* 导航卡片面板 */
.site-header{position:sticky;top:0;z-index:60;padding:14px 0 10px;background:rgba(247,249,252,.92);backdrop-filter:blur(8px)}
.nav-panel{
  background:var(--card);border:1px solid var(--line);border-radius:18px;
  box-shadow:var(--sd-card);padding:12px 16px;
  display:flex;align-items:center;gap:16px;
}
.brand{display:flex;align-items:center;gap:12px;min-width:0}
.brand-mark{
  width:42px;height:42px;flex:0 0 42px;border-radius:12px;
  background:linear-gradient(150deg,var(--brand) 0%,var(--brand-active) 100%);
  color:#fff;display:grid;place-items:center;font-size:18px;
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;min-width:0}
.brand-name{font-size:16px;font-weight:700;color:var(--ink);white-space:nowrap}
.brand-sub{font-size:11px;color:var(--muted);letter-spacing:.08em;text-transform:uppercase}
.nav-chips{display:flex;align-items:center;gap:10px;margin-left:8px;flex:1 1 auto;flex-wrap:wrap}
.nav-chip{
  display:inline-flex;align-items:center;gap:8px;
  border:1px solid var(--line);border-radius:12px;background:#fff;
  padding:8px 12px;font-size:14px;color:var(--ink);font-weight:500;
  transition:transform .18s ease-out,border-color .18s ease-out,box-shadow .18s ease-out,color .18s ease-out;
}
.nav-chip i{color:var(--brand);font-size:13px}
.nav-chip:hover{transform:translateY(-2px);border-color:var(--brand);color:var(--brand-hover);box-shadow:0 8px 18px -12px rgba(23,32,46,.35)}
.nav-chip.is-active{background:var(--brand-soft);border-color:rgba(44,110,170,.45);color:var(--brand-active);font-weight:600}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:auto}
.burger{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:#fff;
  display:none;place-items:center;color:var(--ink)
}
.burger:hover{border-color:var(--brand);color:var(--brand)}
.drawer{
  display:none;position:fixed;inset:0;z-index:80;
}
.drawer.is-open{display:block}
.drawer-mask{position:absolute;inset:0;background:rgba(23,32,46,.48)}
.drawer-panel{
  position:absolute;top:0;right:0;width:min(340px,88vw);height:100%;
  background:#fff;box-shadow:-18px 0 40px -24px rgba(23,32,46,.4);
  padding:18px;display:flex;flex-direction:column;gap:10px;overflow-y:auto;
}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:6px}
.drawer-item{
  display:flex;align-items:center;gap:12px;min-height:48px;padding:0 14px;
  border:1px solid var(--line);border-radius:12px;color:var(--ink);font-size:15px;
}
.drawer-item i{color:var(--brand);width:18px;text-align:center}
.drawer-item.is-active{background:var(--brand-soft);border-color:rgba(44,110,170,.4);color:var(--brand-active);font-weight:600}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;white-space:nowrap;
  transition:background-color .18s ease-out,color .18s ease-out,border-color .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 22px -14px rgba(44,110,170,.9)}
.btn-primary:hover{background:var(--brand-hover);color:#fff;transform:translateY(-2px);box-shadow:0 16px 30px -16px rgba(28,74,117,.85)}
.btn-primary:active{background:var(--brand-active);transform:translateY(0)}
.btn-ghost{background:#fff;color:var(--brand);border:1px solid rgba(44,110,170,.5)}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-hover);border-color:var(--brand)}
.btn-link{color:var(--brand);font-weight:600;font-size:14px;display:inline-flex;align-items:center;gap:6px}
.btn-link:hover{text-decoration:underline}
.btn-block{width:100%}

/* Hero */
.hero{padding:26px 0 8px}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center}
.hero h1{font-size:clamp(28px,4vw,44px);font-weight:700;letter-spacing:-.02em;margin:18px 0 0}
.hero-lead{margin-top:18px;font-size:17px;color:var(--muted);max-width:560px}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.trust-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:26px;font-size:13px;color:var(--muted)}
.trust-row span.dot{width:4px;height:4px;border-radius:50%;background:#C6D2E0}
.hero-visual{position:relative}
.hero-shot{
  border-radius:16px;overflow:hidden;border:1px solid var(--line);box-shadow:var(--sd-card);position:relative;
}
.hero-shot img{width:100%;aspect-ratio:4/3;object-fit:cover}
.hero-shot::after{content:"";position:absolute;inset:0;background:rgba(44,110,170,.06)}
.float-card{
  position:absolute;left:-18px;bottom:-22px;background:#fff;border:1px solid var(--line);
  border-radius:14px;box-shadow:var(--sd-hover);padding:14px 18px;min-width:190px;
}
.float-card .fc-num{font-size:26px;font-weight:700;color:var(--brand);line-height:1.1}
.float-card .fc-txt{font-size:12px;color:var(--muted);margin-top:4px}

/* 卡片通用 */
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sd-card);padding:26px;
  transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.card-hover:hover{transform:translateY(-2px);box-shadow:var(--sd-hover);border-color:#D6E0EC}
.pill{
  display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;
  background:var(--brand-soft);color:var(--brand-active);border-radius:999px;padding:4px 12px;
}
.pill-sand{background:#FBF2E1;color:#8A5F12}
.pill-teal{background:#E4F5F1;color:#12705F}

/* 痛点卡 */
.pain-card{
  position:relative;background:#F7F9FC;border:1px solid var(--line);border-radius:14px;
  padding:22px 22px 22px 26px;border-left:3px solid var(--brand);
  transition:transform .18s ease-out,box-shadow .18s ease-out,background-color .18s ease-out;
}
.pain-card:hover{background:#fff;transform:translateY(-2px);box-shadow:var(--sd-hover)}
.pain-card h3{font-size:16px;font-weight:600}
.pain-card p{margin-top:8px;font-size:14px;color:var(--muted)}

/* 方案错位栅格 */
.solution-grid{display:grid;grid-template-columns:2fr 1fr;gap:24px;align-items:stretch}
.solution-side{display:grid;grid-template-rows:1fr 1fr;gap:24px}
.icon-box{
  width:46px;height:46px;border-radius:12px;display:grid;place-items:center;
  background:var(--brand-soft);color:var(--brand);font-size:18px;margin-bottom:16px;
}
.check-list{margin-top:16px;display:grid;gap:10px}
.check-list li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--muted)}
.check-list i{color:var(--teal);margin-top:4px;font-size:13px}

/* 数据带 */
.metric-band{background:var(--brand-active);color:#fff;border-radius:20px;padding:38px 34px}
.metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.metric{position:relative;padding-left:22px;border-left:1px solid rgba(255,255,255,.18)}
.metric:first-child{border-left:0;padding-left:0}
.metric .m-num{font-size:clamp(30px,3.4vw,42px);font-weight:700;line-height:1.1;font-variant-numeric:tabular-nums}
.metric .m-txt{font-size:13px;color:rgba(255,255,255,.78);margin-top:8px}

/* 资讯列表 */
.news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.news-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sd-card);color:var(--ink);
  transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--sd-hover);border-color:#D6E0EC;color:var(--ink)}
.news-cover{position:relative;aspect-ratio:16/9;background:var(--brand-soft);overflow:hidden}
.news-cover img{width:100%;height:100%;object-fit:cover}
.news-cover .placeholder{
  position:absolute;inset:0;display:grid;place-items:center;color:var(--brand);font-size:24px;
}
.news-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.news-title{
  font-size:17px;font-weight:600;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card:hover .news-title{color:var(--brand)}
.news-sum{
  font-size:14px;color:var(--muted);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--muted);margin-top:auto}
.empty-state{
  grid-column:1/-1;text-align:center;padding:56px 24px;background:#fff;border:1px dashed var(--line);border-radius:var(--r-card);
}
.empty-state i{font-size:26px;color:var(--brand)}
.empty-state p{margin:14px 0 20px;color:var(--muted);font-size:15px}

/* 表单区块与弹层 */
.lead-card{
  background:linear-gradient(180deg,#FFFFFF 0%,#F4F8FC 100%);
  border:1px solid var(--line);border-radius:18px;padding:34px;
  display:grid;grid-template-columns:1.4fr auto;gap:26px;align-items:center;box-shadow:var(--sd-card);
}
.modal{position:fixed;inset:0;z-index:90;display:none}
.modal.is-open{display:block}
.modal-mask{position:absolute;inset:0;background:rgba(23,32,46,.48)}
.modal-card{
  position:relative;background:#fff;border-radius:20px;width:min(480px,calc(100% - 32px));
  max-height:88vh;overflow-y:auto;margin:6vh auto 0;padding:28px;box-shadow:0 30px 70px -30px rgba(23,32,46,.55);
}
.modal-close{
  position:absolute;top:14px;right:14px;width:36px;height:36px;border-radius:50%;
  border:1px solid var(--line);display:grid;place-items:center;color:var(--muted);
}
.modal-close:hover{border-color:var(--brand);color:var(--brand)}
.field{margin-top:16px}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:8px}
.field .req{color:#D9534F}
.input{
  width:100%;height:44px;border:1px solid var(--line);border-radius:var(--r-btn);
  padding:0 14px;background:#fff;transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
textarea.input{height:auto;padding:12px 14px;resize:vertical;min-height:88px}
.input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(44,110,170,.14)}
.input.is-error{border-color:#D9534F;box-shadow:0 0 0 3px rgba(217,83,79,.12)}
.agree{display:flex;gap:10px;align-items:flex-start;font-size:13px;color:var(--muted);margin-top:18px}
.agree input{width:18px;height:18px;margin-top:3px;accent-color:var(--brand)}
.form-ok{text-align:center;padding:24px 6px}
.form-ok i{font-size:34px;color:var(--teal)}

/* 隐私说明 */
.privacy{display:grid;grid-template-columns:auto 1fr;gap:18px;align-items:flex-start;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:24px;box-shadow:var(--sd-card)}
.privacy-icon{width:44px;height:44px;border-radius:12px;background:var(--brand-soft);color:var(--brand);display:grid;place-items:center;font-size:17px}
.privacy li{font-size:13px;color:var(--muted);display:flex;gap:8px;align-items:flex-start}
.privacy li + li{margin-top:6px}
.privacy li i{color:var(--brand);font-size:11px;margin-top:6px}

/* FAQ */
.faq-item{border:1px solid var(--line);border-radius:14px;background:#fff;margin-bottom:12px;overflow:hidden;transition:box-shadow .18s ease-out}
.faq-item.is-open{background:#F7F9FC;box-shadow:var(--sd-card)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:0 22px;min-height:56px;font-size:16px;font-weight:600;text-align:left;color:var(--ink);
}
.faq-q i{color:var(--brand);transition:transform .2s ease-out}
.faq-item.is-open .faq-q i{transform:rotate(45deg)}
.faq-a{display:none;padding:0 22px 20px;font-size:15px;line-height:1.8;color:var(--muted)}
.faq-item.is-open .faq-a{display:block}

/* 分类互链 */
.cat-link-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.cat-link{
  display:flex;flex-direction:column;gap:8px;background:#fff;border:1px solid var(--line);
  border-radius:14px;padding:20px;color:var(--ink);
  transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.cat-link:hover{transform:translateY(-2px);box-shadow:var(--sd-hover);border-color:var(--brand);color:var(--ink)}
.cat-link span.t{font-size:15px;font-weight:600}
.cat-link span.d{font-size:13px;color:var(--muted)}

/* 页脚 */
.site-footer{background:#fff;border-top:1px solid var(--line);margin-top:40px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:28px;padding:52px 0 34px}
.footer-col h4{font-size:14px;font-weight:600;margin-bottom:14px;color:var(--ink)}
.footer-col li + li{margin-top:9px}
.footer-col a,.footer-col p{font-size:14px;color:var(--muted)}
.footer-col a:hover{color:var(--brand)}
.footer-bottom{border-top:1px solid var(--line);padding:18px 0;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:var(--muted)}

@media (max-width:1023px){
  .nav-chips{display:none}
  .burger{display:grid}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .solution-grid{grid-template-columns:1fr}
  .solution-side{grid-template-rows:auto;grid-template-columns:1fr 1fr}
  .metric-grid{grid-template-columns:repeat(2,1fr)}
  .metric{border-left:0;padding-left:0}
  .news-grid{grid-template-columns:1fr}
  .lead-card{grid-template-columns:1fr}
  .cat-link-grid{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:24px}
  .float-card{left:12px;bottom:-18px}
}
@media (max-width:639px){
  .container{padding:0 16px}
  .section{padding:46px 0}
  .hero h1{margin-top:14px}
  .solution-side{grid-template-columns:1fr}
  .metric-band{padding:28px 22px}
  .metric-grid{grid-template-columns:1fr 1fr;gap:20px}
  .cat-link-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .modal-card{margin:0;position:absolute;bottom:0;left:0;right:0;width:100%;max-height:92vh;border-radius:20px 20px 0 0}
  .btn{height:48px}
  .card{padding:22px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
  .card-hover:hover,.news-card:hover,.nav-chip:hover,.cat-link:hover,.btn-primary:hover{transform:none}
}

/* roulang page: category1 */
:root{
  --brand:#2C6EAA;
  --brand-hover:#235A8C;
  --brand-active:#1C4A75;
  --brand-soft:#EAF2FA;
  --accent:#D99A2B;
  --success:#1F9E8A;
  --ink:#17202E;
  --muted:#55637A;
  --border:#E3E9F2;
  --bg:#F7F9FC;
  --card:#FFFFFF;
  --radius-card:16px;
  --radius-btn:10px;
  --radius-pill:999px;
  --shadow-card:0 1px 2px rgba(23,32,46,.04), 0 10px 28px -14px rgba(23,32,46,.14);
  --shadow-hover:0 16px 34px -14px rgba(23,32,46,.22);
  --font:system-ui,-apple-system,"PingFang SC","Noto Sans SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .18s ease-out;}
a:hover{color:var(--brand-hover);}
button{font-family:inherit;cursor:pointer;}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:600;color:var(--ink);}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;box-shadow:0 0 0 1px #fff;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,249,252,.86);
  backdrop-filter:saturate(180%) blur(8px);
  padding:14px 0 10px;
}
.nav-panel{
  display:flex;align-items:center;gap:18px;
  background:var(--card);
  border:1px solid var(--border);
  border-radius:18px;
  box-shadow:var(--shadow-card);
  padding:12px 16px;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--ink);}
.brand:hover{color:var(--ink);}
.brand-mark{
  width:40px;height:40px;border-radius:12px;
  display:grid;place-items:center;
  background:var(--brand-soft);color:var(--brand);
  font-size:18px;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-name{font-size:16px;font-weight:700;letter-spacing:.2px;}
.brand-sub{font-size:11px;color:var(--muted);letter-spacing:.06em;text-transform:uppercase;}
.nav-chips{display:flex;align-items:center;gap:8px;flex:1 1 auto;flex-wrap:wrap;}
.nav-chip{
  display:inline-flex;align-items:center;gap:7px;
  padding:9px 13px;
  font-size:14px;color:var(--muted);
  border:1px solid var(--border);
  border-radius:var(--radius-btn);
  background:#fff;
  transition:all .18s ease-out;
  white-space:nowrap;
}
.nav-chip i{color:#93A2B8;font-size:13px;transition:color .18s ease-out;}
.nav-chip:hover{
  color:var(--brand);border-color:var(--brand);
  transform:translateY(-2px);
  box-shadow:0 8px 18px -12px rgba(23,32,46,.3);
}
.nav-chip:hover i{color:var(--brand);}
.nav-chip.is-active{background:var(--brand-soft);border-color:var(--brand-soft);color:var(--brand-active);font-weight:600;}
.nav-chip.is-active i{color:var(--brand);}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 18px;
  font-size:14px;font-weight:600;
  border-radius:var(--radius-btn);
  border:1px solid transparent;
  transition:all .18s ease-out;
  text-align:center;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 18px -12px rgba(44,110,170,.9);}
.btn-primary:hover{background:var(--brand-hover);color:#fff;transform:translateY(-1px);box-shadow:0 12px 24px -12px rgba(44,110,170,.85);}
.btn-primary:active{background:var(--brand-active);transform:translateY(0);}
.btn-outline{background:#fff;color:var(--brand);border-color:var(--brand);}
.btn-outline:hover{background:var(--brand-soft);color:var(--brand-hover);}
.btn-link{
  background:none;border:none;padding:0;color:var(--brand);
  font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:6px;
}
.btn-link:hover{color:var(--brand-hover);text-decoration:underline;}
.burger{
  display:none;width:44px;height:44px;border-radius:var(--radius-btn);
  border:1px solid var(--border);background:#fff;color:var(--ink);font-size:16px;
  align-items:center;justify-content:center;
}
.burger:hover{border-color:var(--brand);color:var(--brand);}

/* ---------- drawer ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(23,32,46,.48);
  opacity:0;visibility:hidden;transition:opacity .2s ease-out;z-index:80;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:min(320px,86vw);
  background:#fff;z-index:90;padding:20px 18px;
  transform:translateX(102%);transition:transform .24s ease-out;
  box-shadow:-16px 0 40px -20px rgba(23,32,46,.35);
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px;}
.drawer-title{font-size:15px;font-weight:700;}
.drawer-close{
  width:36px;height:36px;border-radius:50%;border:1px solid var(--border);
  background:#fff;color:var(--muted);display:grid;place-items:center;
}
.drawer-close:hover{border-color:var(--brand);color:var(--brand);}
.drawer-list{display:flex;flex-direction:column;gap:8px;}
.drawer-list a{
  display:flex;align-items:center;gap:10px;min-height:44px;
  padding:0 14px;border:1px solid var(--border);border-radius:var(--radius-btn);
  color:var(--ink);font-size:15px;
}
.drawer-list a i{color:#93A2B8;width:18px;text-align:center;}
.drawer-list a:hover{border-color:var(--brand);color:var(--brand);}
.drawer-list a.is-active{background:var(--brand-soft);border-color:var(--brand-soft);color:var(--brand-active);font-weight:600;}
.drawer-cta{margin-top:16px;}

/* ---------- page hero ---------- */
.pagehero{
  position:relative;overflow:hidden;
  background:var(--brand-soft);
  border-radius:20px;
  margin-top:22px;
  padding:44px 36px;
  border:1px solid #DCE9F6;
}
.pagehero::after{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  opacity:.16;pointer-events:none;
}
.pagehero-inner{position:relative;z-index:2;max-width:780px;}
.breadcrumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:13px;color:var(--muted);margin-bottom:14px;
}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{color:#B7C3D4;}
.breadcrumb .current{color:var(--muted);}
.pagehero h1{
  font-size:clamp(28px,4vw,42px);
  font-weight:700;line-height:1.25;letter-spacing:-.4px;
}
.pagehero .lead{
  margin-top:16px;font-size:16px;color:#33445C;line-height:1.8;max-width:680px;
}
.pagehero .tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 12px;border-radius:var(--radius-pill);
  background:#fff;border:1px solid #DCE9F6;
  font-size:13px;color:var(--brand-active);
}
.tag i{color:var(--brand);font-size:12px;}

/* ---------- sections ---------- */
.section{padding:64px 0;}
.section-sm{padding:48px 0;}
.section-head{max-width:720px;margin-bottom:32px;}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--brand);
  background:var(--brand-soft);border-radius:var(--radius-pill);
  padding:6px 13px;margin-bottom:14px;
}
.section-head h2{font-size:clamp(22px,2.6vw,30px);font-weight:600;}
.section-head p{margin-top:12px;color:var(--muted);font-size:15px;}

/* ---------- feature rows ---------- */
.feature-row{
  display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:center;
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);padding:28px;
  transition:box-shadow .2s ease-out, transform .2s ease-out;
}
.feature-row:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px);}
.feature-row + .feature-row{margin-top:24px;}
.feature-media{
  border-radius:12px;overflow:hidden;background:var(--brand-soft);
  aspect-ratio:16/9;
}
.feature-media img{width:100%;height:100%;object-fit:cover;}
.feature-body h3{font-size:20px;font-weight:600;}
.feature-body .kicker{
  display:inline-flex;align-items:center;gap:7px;
  font-size:13px;font-weight:600;color:var(--accent);
  margin-bottom:10px;
}
.feature-body p{margin-top:12px;color:var(--muted);font-size:15px;}
.feature-list{margin-top:16px;display:flex;flex-direction:column;gap:10px;}
.feature-list li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:15px;color:#33445C;
}
.feature-list li i{color:var(--success);margin-top:5px;font-size:13px;}
.feature-row.reverse .feature-media{order:2;}

/* ---------- conclusion card ---------- */
.conclusion{
  margin-top:28px;
  background:var(--brand-soft);
  border:1px solid #DCE9F6;
  border-radius:var(--radius-card);
  padding:30px 28px;
  display:grid;grid-template-columns:1.2fr .8fr;gap:26px;align-items:center;
}
.conclusion h3{font-size:20px;}
.conclusion p{margin-top:10px;color:#33445C;font-size:15px;}
.conclusion .conclusion-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end;}
.check-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin-top:16px;}
.check-item{
  display:flex;align-items:center;gap:9px;
  background:#fff;border:1px solid var(--border);border-radius:10px;
  padding:10px 12px;font-size:14px;color:#33445C;
}
.check-item i{color:var(--brand);}

/* ---------- faq ---------- */
.faq-list{border-top:1px solid var(--border);}
.faq-item{border-bottom:1px solid var(--border);}
.faq-q{
  width:100%;background:none;border:none;text-align:left;
  min-height:56px;padding:16px 44px 16px 4px;
  font-size:16px;font-weight:600;color:var(--ink);
  position:relative;
}
.faq-q:hover{color:var(--brand);}
.faq-q::after{
  content:"+";position:absolute;right:8px;top:50%;
  transform:translateY(-50%);font-size:22px;font-weight:400;color:var(--brand);
  transition:transform .2s ease-out;
}
.faq-item.is-open .faq-q::after{transform:translateY(-50%) rotate(45deg);}
.faq-a{
  max-height:0;overflow:hidden;transition:max-height .26s ease-out;
  font-size:15px;color:var(--muted);
}
.faq-item.is-open .faq-a{background:#F7F9FC;}
.faq-a-inner{padding:0 4px 18px;}

/* ---------- cta band ---------- */
.cta-band{
  background:linear-gradient(180deg,#FFFFFF 0%, #F7F9FC 100%);
  border:1px solid var(--border);
  border-radius:20px;
  box-shadow:var(--shadow-card);
  padding:34px 32px;
  display:grid;grid-template-columns:1.35fr .65fr;gap:26px;align-items:center;
}
.cta-band h2{font-size:clamp(22px,2.6vw,28px);}
.cta-band p{margin-top:12px;color:var(--muted);font-size:15px;}
.cta-actions{display:flex;flex-direction:column;gap:12px;align-items:stretch;}

/* ---------- related category cards ---------- */
.rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.rel-card{
  display:block;background:var(--card);border:1px solid var(--border);
  border-radius:var(--radius-card);padding:22px;color:var(--ink);
  box-shadow:var(--shadow-card);
  transition:all .2s ease-out;
}
.rel-card:hover{color:var(--ink);transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:#CFE0F1;}
.rel-icon{
  width:42px;height:42px;border-radius:12px;display:grid;place-items:center;
  background:var(--brand-soft);color:var(--brand);font-size:17px;margin-bottom:14px;
}
.rel-card h3{font-size:17px;font-weight:600;}
.rel-card p{margin-top:8px;font-size:14px;color:var(--muted);}
.rel-more{margin-top:14px;font-size:14px;font-weight:600;color:var(--brand);display:inline-flex;align-items:center;gap:6px;}

/* ---------- privacy note ---------- */
.privacy-note{
  margin-top:26px;display:flex;gap:18px;flex-wrap:wrap;align-items:center;
  border:1px dashed var(--border);border-radius:var(--radius-card);
  padding:16px 20px;background:#fff;
}
.privacy-note .lock{
  width:38px;height:38px;border-radius:50%;display:grid;place-items:center;
  background:var(--brand-soft);color:var(--brand);
}
.privacy-note ul{display:flex;gap:22px;flex-wrap:wrap;font-size:13px;color:var(--muted);}
.privacy-note li{display:flex;align-items:center;gap:7px;}
.privacy-note li i{color:var(--brand);font-size:12px;}

/* ---------- modal ---------- */
.modal{
  position:fixed;inset:0;z-index:120;display:none;
  align-items:center;justify-content:center;padding:20px;
}
.modal.is-open{display:flex;}
.modal-mask{position:absolute;inset:0;background:rgba(23,32,46,.48);}
.modal-card{
  position:relative;z-index:2;width:100%;max-width:480px;background:#fff;
  border-radius:20px;padding:26px 24px;box-shadow:0 30px 70px -30px rgba(23,32,46,.5);
  max-height:92vh;overflow-y:auto;
}
.modal-card h3{font-size:20px;}
.modal-card .modal-sub{margin-top:8px;font-size:14px;color:var(--muted);}
.modal-close{
  position:absolute;top:14px;right:14px;width:36px;height:36px;border-radius:50%;
  border:1px solid var(--border);background:#fff;color:var(--muted);
  display:grid;place-items:center;
}
.modal-close:hover{border-color:var(--brand);color:var(--brand);}
.field{margin-top:16px;display:flex;flex-direction:column;gap:7px;}
.field label{font-size:13px;font-weight:600;color:#33445C;}
.field input,.field select,.field textarea{
  width:100%;min-height:44px;padding:10px 12px;
  border:1px solid var(--border);border-radius:10px;
  font-size:14px;font-family:inherit;color:var(--ink);background:#fff;
  transition:border-color .18s ease-out, box-shadow .18s ease-out;
}
.field textarea{min-height:88px;resize:vertical;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(44,110,170,.14);
}
.field.has-error input,.field.has-error select,.field.has-error textarea{border-color:#D9534F;}
.field .err{font-size:12px;color:#D9534F;display:none;}
.field.has-error .err{display:block;}
.check-row{display:flex;align-items:flex-start;gap:9px;margin-top:16px;font-size:13px;color:var(--muted);}
.check-row input{width:18px;height:18px;margin-top:2px;accent-color:var(--brand);}
.modal-submit{width:100%;margin-top:18px;}
.success-box{text-align:center;padding:14px 4px 6px;}
.success-box .ok{
  width:56px;height:56px;border-radius:50%;background:var(--brand-soft);color:var(--success);
  display:grid;place-items:center;font-size:24px;margin:0 auto 16px;
}
.success-box h4{font-size:18px;}
.success-box p{margin-top:10px;font-size:14px;color:var(--muted);}
.success-box .btn{margin-top:18px;}

/* ---------- footer ---------- */
.site-footer{
  margin-top:64px;background:#FFFFFF;border-top:1px solid var(--border);
  padding:48px 0 22px;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:24px;}
.footer-col h4{font-size:15px;font-weight:600;margin-bottom:14px;}
.footer-col p{font-size:14px;color:var(--muted);line-height:1.75;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col ul li a{font-size:14px;color:var(--muted);}
.footer-col ul li a:hover{color:var(--brand);}
.footer-col .brand{margin-bottom:14px;}
.footer-bottom{
  margin-top:36px;padding-top:18px;border-top:1px solid var(--border);
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:#7A8899;
}

@media (prefers-reduced-motion: reduce){
  *{transition:none !important;animation:none !important;}
  .feature-row:hover,.rel-card:hover,.nav-chip:hover{transform:none;}
}

@media (max-width:1023px){
  .nav-chips{display:none;}
  .burger{display:inline-flex;}
  .feature-row{grid-template-columns:1fr;gap:20px;}
  .feature-row.reverse .feature-media{order:0;}
  .conclusion{grid-template-columns:1fr;}
  .conclusion .conclusion-actions{justify-content:flex-start;}
  .cta-band{grid-template-columns:1fr;}
  .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:639px){
  .container{padding:0 16px;}
  .nav-panel{padding:10px 12px;gap:10px;}
  .brand-sub{display:none;}
  .nav-actions .btn-primary{display:none;}
  .pagehero{padding:30px 20px;border-radius:16px;}
  .section{padding:48px 0;}
  .feature-row{padding:20px;}
  .check-grid{grid-template-columns:1fr;}
  .rel-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .cta-band{padding:24px 20px;}
  .modal{padding:0;align-items:flex-end;}
  .modal-card{border-radius:20px 20px 0 0;max-width:100%;max-height:90vh;}
}

/* roulang page: article */
:root{
  --primary:#2C6EAA;
  --primary-hover:#235A8C;
  --primary-active:#1C4A75;
  --primary-soft:#EAF2FA;
  --accent:#D99A2B;
  --green:#1F9E8A;
  --ink:#17202E;
  --muted:#55637A;
  --line:#E3E9F2;
  --bg:#F7F9FC;
  --card:#FFFFFF;
  --danger:#D9534F;
  --r-card:16px;
  --r-btn:10px;
  --r-img:12px;
  --shadow-card:0 1px 2px rgba(23,32,46,.04), 0 10px 28px -14px rgba(23,32,46,.14);
  --shadow-hover:0 16px 34px -14px rgba(23,32,46,.22);
  --t:180ms ease-out;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
input,select,textarea{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
.num{font-variant-numeric:tabular-nums}
.container{max-width:1200px;margin:0 auto;padding:0 20px}
.skip-link{position:absolute;left:-9999px;top:0;background:#fff;padding:10px 16px;border-radius:8px;z-index:99}
.skip-link:focus{left:16px;top:16px}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.no-scroll{overflow:hidden}

/* 按钮体系 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 20px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;
  transition:background-color var(--t),color var(--t),box-shadow var(--t),transform var(--t),border-color var(--t);
  white-space:nowrap;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 6px 16px -10px rgba(44,110,170,.9)}
.btn-primary:hover{background:var(--primary-hover);box-shadow:var(--shadow-hover);transform:translateY(-1px)}
.btn-primary:active{background:var(--primary-active);transform:translateY(0)}
.btn-outline{background:#fff;color:var(--primary);border:1px solid var(--primary)}
.btn-outline:hover{background:var(--primary-soft);border-color:var(--primary-hover);color:var(--primary-hover)}
.btn-ghost{background:var(--primary-soft);color:var(--primary)}
.btn-ghost:hover{background:#DCEAF7}
.btn-link{color:var(--primary);font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:6px;padding:6px 0}
.btn-link:hover{text-decoration:underline}
.text-link{color:var(--primary);font-weight:600;font-size:14px;display:inline-flex;align-items:center;gap:6px}
.text-link:hover{text-decoration:underline}

/* 标签 */
.pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;
  background:var(--primary-soft);color:var(--primary);
  font-size:13px;font-weight:600;line-height:1.6;
}
.pill-accent{background:#FBF2DF;color:#A87216}
.pill-green{background:#E4F5F1;color:#157F6E}

/* 顶部导航 */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,249,252,.92);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  padding:12px 0;
}
.nav-panel{
  display:flex;align-items:center;gap:18px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:18px;
  box-shadow:var(--shadow-card);
  padding:10px 14px;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:40px;height:40px;border-radius:12px;
  background:var(--primary);color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:18px;
  box-shadow:0 8px 18px -10px rgba(44,110,170,.9);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-name{font-size:16px;font-weight:700;letter-spacing:.2px}
.brand-sub{font-size:11px;color:var(--muted);letter-spacing:.6px;text-transform:uppercase}
.nav-chips{display:flex;align-items:center;gap:8px;flex:1 1 auto;flex-wrap:wrap}
.nav-chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:9px 12px;border-radius:12px;
  font-size:14px;font-weight:500;color:var(--muted);
  border:1px solid transparent;
  transition:all var(--t);
}
.nav-chip i{color:#8E9BAF;font-size:13px;transition:color var(--t)}
.nav-chip:hover{border-color:var(--primary);color:var(--primary);background:#fff;transform:translateY(-2px);box-shadow:var(--shadow-card)}
.nav-chip:hover i{color:var(--primary)}
.nav-chip.is-active{background:var(--primary-soft);color:var(--primary);border-color:#CFE1F2}
.nav-chip.is-active i{color:var(--primary)}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.burger{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:#fff;color:var(--ink);
  align-items:center;justify-content:center;font-size:17px;
}
.burger:hover{border-color:var(--primary);color:var(--primary)}

/* 移动端抽屉 */
.nav-drawer{position:fixed;inset:0;z-index:80;display:none}
.nav-drawer::before{content:"";position:absolute;inset:0;background:rgba(23,32,46,.48)}
.nav-drawer.is-open{display:block}
.drawer-card{
  position:absolute;right:12px;top:12px;left:12px;
  background:#fff;border-radius:18px;padding:16px;
  box-shadow:var(--shadow-hover);
  max-height:86vh;overflow:auto;
}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}
.drawer-item{
  display:flex;align-items:center;gap:10px;
  min-height:48px;padding:0 12px;border-radius:12px;
  font-size:15px;color:var(--ink);border:1px solid var(--line);margin-bottom:8px;
}
.drawer-item i{color:var(--primary);width:18px;text-align:center}
.drawer-item:hover{border-color:var(--primary);background:var(--primary-soft)}
.drawer-item.is-active{background:var(--primary-soft);border-color:#CFE1F2;color:var(--primary);font-weight:600}
.icon-btn{
  width:36px;height:36px;border-radius:50%;
  border:1px solid var(--line);background:#fff;
  display:inline-flex;align-items:center;justify-content:center;
}
.icon-btn:hover{border-color:var(--primary);color:var(--primary)}

/* 文章页头 */
.article-hero{position:relative;overflow:hidden;background:var(--primary-soft);padding:26px 0 38px}
.article-hero .hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  opacity:.14;
}
.article-hero .hero-inner{position:relative;z-index:1}
.breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--muted);margin-bottom:16px}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--primary);text-decoration:underline}
.breadcrumb .sep{color:#B7C2D2}
.breadcrumb .current{color:#8B97AB;max-width:60ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-cat{
  display:inline-flex;align-items:center;gap:6px;
  background:#fff;color:var(--primary);
  border:1px solid #CFE1F2;border-radius:999px;
  padding:4px 12px;font-size:13px;font-weight:600;margin-bottom:14px;
}
.article-title{
  font-size:clamp(26px,3.6vw,40px);
  font-weight:700;line-height:1.28;letter-spacing:.2px;
  max-width:900px;color:var(--ink);
}
.article-meta{
  display:flex;align-items:center;flex-wrap:wrap;gap:12px;
  margin-top:16px;font-size:13px;color:var(--muted);
}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:#C4CEDC}
.article-meta span{display:inline-flex;align-items:center;gap:6px}
.article-meta i{color:#93A2B8;font-size:12px}

/* 两栏布局 */
.article-main{padding:36px 0 8px}
.layout-2col{display:grid;grid-template-columns:minmax(0,1fr) 324px;gap:32px;align-items:start}
.article-card{
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--shadow-card);
  padding:32px;
}
.article-body{font-size:17px;line-height:1.9;color:var(--ink);max-width:720px}
.article-body h2{
  font-size:23px;font-weight:600;line-height:1.45;
  margin:34px 0 14px;padding-left:12px;border-left:3px solid var(--primary);
}
.article-body h3{font-size:18px;font-weight:600;margin:26px 0 10px;color:var(--ink)}
.article-body p{margin:0 0 1.2em}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:1.5em}
.article-body ul li{list-style:disc;margin:.4em 0}
.article-body ol li{list-style:decimal;margin:.4em 0}
.article-body blockquote{
  margin:20px 0;padding:14px 18px;
  background:var(--primary-soft);border-left:3px solid var(--primary);
  border-radius:0 10px 10px 0;color:var(--muted);font-size:16px;
}
.article-body img{width:100%;border-radius:var(--r-img);margin:18px 0}
.article-body a{color:var(--primary);text-decoration:underline}
.article-body strong{font-weight:600}
.article-body table{width:100%;border-collapse:separate;border-spacing:0;border:1px solid var(--line);border-radius:12px;overflow:hidden;font-size:15px;margin:20px 0}
.article-body th,.article-body td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left}
.article-body th{background:var(--primary-soft);font-weight:600}
.article-body tr:last-child td{border-bottom:0}

/* 空态 */
.empty-state{
  text-align:center;padding:56px 24px;
  background:var(--card);border:1px dashed var(--line);border-radius:var(--r-card);
}
.empty-state i{font-size:34px;color:#A9B7C9;margin-bottom:14px;display:block}
.empty-state h3{font-size:19px;font-weight:600;margin-bottom:8px}
.empty-state p{color:var(--muted);font-size:15px;margin-bottom:20px}

/* 侧栏 */
.side-col{position:sticky;top:96px}
.side-card{
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--shadow-card);
  padding:20px;margin-bottom:20px;
}
.side-card h3{font-size:16px;font-weight:700;margin-bottom:14px;display:flex;align-items:center;gap:8px}
.side-card h3 i{color:var(--primary);font-size:14px}
.info-row{display:flex;justify-content:space-between;gap:12px;font-size:14px;padding:9px 0;border-bottom:1px dashed var(--line)}
.info-row:last-child{border-bottom:0}
.info-row .k{color:var(--muted)}
.info-row .v{font-weight:600;text-align:right}
.side-links li{margin-bottom:8px}
.side-links a{
  display:flex;align-items:center;gap:10px;
  min-height:44px;padding:0 12px;border-radius:12px;
  border:1px solid var(--line);font-size:14px;color:var(--muted);
  transition:all var(--t);
}
.side-links a i{color:var(--primary);font-size:13px;width:16px;text-align:center}
.side-links a:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-soft);transform:translateX(2px)}
.side-cta{
  background:linear-gradient(180deg,#2C6EAA 0%,#235A8C 100%);
  color:#fff;border-radius:var(--r-card);padding:22px;
  box-shadow:var(--shadow-card);margin-bottom:20px;
}
.side-cta h3{font-size:17px;font-weight:700;margin-bottom:8px}
.side-cta p{font-size:13px;color:rgba(255,255,255,.82);line-height:1.7;margin-bottom:16px}
.side-cta .btn{width:100%;background:#fff;color:var(--primary)}
.side-cta .btn:hover{background:#EAF2FA;transform:translateY(-1px)}

/* 上一篇/下一篇 */
.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:24px}
.post-nav-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:18px 20px;box-shadow:var(--shadow-card);
  transition:all var(--t);display:block;
}
.post-nav-card:hover{border-color:var(--primary);box-shadow:var(--shadow-hover);transform:translateY(-2px)}
.post-nav-card .label{font-size:12px;color:var(--muted);letter-spacing:.4px;display:block;margin-bottom:6px}
.post-nav-card .txt{font-size:15px;font-weight:600;color:var(--ink);display:block}

/* 相关推荐 */
.section{padding:44px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:22px;flex-wrap:wrap}
.section-head h2{font-size:24px;font-weight:700;letter-spacing:.2px}
.section-head .sub{font-size:14px;color:var(--muted);margin-top:6px}
.rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.rel-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-card);overflow:hidden;
  display:flex;flex-direction:column;
  transition:all var(--t);
}
.rel-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px);border-color:#CFE1F2}
.rel-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--primary-soft);position:relative}
.rel-thumb img{width:100%;height:100%;object-fit:cover}
.rel-body{padding:16px 18px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.rel-body .title{font-size:16px;font-weight:600;line-height:1.55;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rel-body .desc{
  font-size:14px;color:var(--muted);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.rel-foot{display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--muted);margin-top:auto}

/* CTA */
.cta-band{
  background:linear-gradient(120deg,#1C4A75 0%,#2C6EAA 62%,#3C86C4 100%);
  color:#fff;border-radius:20px;padding:38px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  box-shadow:var(--shadow-card);position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-60px;width:240px;height:240px;
  border-radius:50%;background:rgba(255,255,255,.08);
}
.cta-band h2{font-size:26px;font-weight:700;line-height:1.35;margin-bottom:10px}
.cta-band p{font-size:14px;color:rgba(255,255,255,.85);max-width:52ch;line-height:1.75}
.cta-band .cta-actions{display:flex;gap:12px;flex:0 0 auto}
.cta-band .btn-light{background:#fff;color:var(--primary)}
.cta-band .btn-light:hover{background:#EAF2FA;transform:translateY(-1px)}
.cta-band .btn-line{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.6)}
.cta-band .btn-line:hover{background:rgba(255,255,255,.14)}

/* 表单弹层 */
.modal{position:fixed;inset:0;z-index:90;display:none}
.modal.is-open{display:block}
.modal-mask{position:absolute;inset:0;background:rgba(23,32,46,.48)}
.modal-card{
  position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);
  width:min(480px,calc(100% - 32px));
  background:#fff;border-radius:20px;padding:26px;
  box-shadow:0 30px 60px -24px rgba(23,32,46,.4);
  max-height:90vh;overflow:auto;
}
.modal-close{position:absolute;right:16px;top:16px}
.modal-card h3{font-size:20px;font-weight:700;padding-right:40px}
.modal-sub{font-size:14px;color:var(--muted);margin:8px 0 18px;line-height:1.7}
.field{margin-bottom:14px}
.field label{display:block;font-size:13px;font-weight:600;color:var(--muted);margin-bottom:6px}
.field input,.field select,.field textarea{
  width:100%;min-height:44px;padding:10px 12px;
  border:1px solid var(--line);border-radius:var(--r-btn);background:#fff;
  transition:border-color var(--t),box-shadow var(--t);
}
.field textarea{min-height:88px;resize:vertical;line-height:1.7}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--primary);outline:none;box-shadow:0 0 0 3px rgba(44,110,170,.14);
}
.field.has-error input,.field.has-error select{border-color:var(--danger)}
.field .err{font-size:12px;color:var(--danger);margin-top:6px;display:none}
.field.has-error .err{display:block}
.check-row{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--muted);line-height:1.6;margin:4px 0 18px}
.check-row input{width:18px;height:18px;margin-top:2px;accent-color:var(--primary);flex:0 0 auto}
.form-success{text-align:center;padding:22px 8px 8px}
.form-success i{font-size:38px;color:var(--green);margin-bottom:12px;display:block}
.form-success h4{font-size:18px;font-weight:700;margin-bottom:8px}
.form-success p{font-size:14px;color:var(--muted);margin-bottom:18px;line-height:1.75}

/* 页脚 */
.site-footer{background:#fff;border-top:1px solid var(--line);margin-top:56px;padding:44px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:24px;padding-bottom:32px}
.footer-col h4{font-size:15px;font-weight:700;margin-bottom:14px}
.footer-col p{font-size:14px;color:var(--muted);line-height:1.75;margin-bottom:8px}
.footer-col ul li{margin-bottom:8px}
.footer-col ul a{font-size:14px;color:var(--muted);transition:color var(--t)}
.footer-col ul a:hover{color:var(--primary)}
.footer-bottom{
  border-top:1px solid var(--line);padding:16px 0 22px;
  display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:var(--muted);
}

/* 响应式 */
@media (max-width:1023px){
  .nav-chips{display:none}
  .burger{display:inline-flex}
  .nav-actions .btn-primary{display:none}
  .layout-2col{grid-template-columns:minmax(0,1fr)}
  .side-col{position:static}
  .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-band{flex-direction:column;align-items:flex-start}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .article-card{padding:22px}
  .article-body{font-size:16px}
  .rel-grid{grid-template-columns:minmax(0,1fr)}
  .post-nav{grid-template-columns:minmax(0,1fr)}
  .cta-band{padding:26px}
  .cta-band .cta-actions{width:100%;flex-direction:column}
  .cta-band .cta-actions .btn{width:100%}
  .site-header{padding:10px 0}
  .nav-panel{padding:8px 10px;gap:10px}
  .brand-sub{display:none}
}
@media (max-width:520px){
  .article-hero{padding:20px 0 28px}
  .footer-grid{grid-template-columns:minmax(0,1fr)}
  .modal-card{
    left:0;right:0;top:auto;bottom:0;transform:none;
    width:100%;border-radius:20px 20px 0 0;max-height:88vh;
  }
  .article-card{padding:18px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
  .rel-card:hover,.post-nav-card:hover,.btn:hover,.nav-chip:hover{transform:none !important}
}

/* roulang page: category3 */
:root{
    --brand:#2C6EAA;
    --brand-hover:#235A8C;
    --brand-active:#1C4A75;
    --brand-soft:#EAF2FA;
    --accent:#D99A2B;
    --success:#1F9E8A;
    --danger:#D9534F;
    --ink:#17202E;
    --muted:#55637A;
    --line:#E3E9F2;
    --bg:#F7F9FC;
    --card:#FFFFFF;
    --r-card:16px;
    --r-btn:10px;
    --r-img:12px;
    --r-panel:18px;
    --sh-card:0 1px 2px rgba(23,32,46,.04), 0 10px 28px -14px rgba(23,32,46,.14);
    --sh-hover:0 16px 34px -14px rgba(23,32,46,.22);
    --t:180ms ease-out;
    --container:1200px;
  }
  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%}
  html body{
    margin:0;
    font-family:system-ui,-apple-system,"PingFang SC","Noto Sans SC","Microsoft YaHei",sans-serif;
    font-size:16px;
    line-height:1.75;
    color:var(--ink);
    background:var(--bg);
  }
  html body img{max-width:100%;display:block}
  html body a{color:inherit;text-decoration:none}
  html body ul{list-style:none;margin:0;padding:0}
  html body h1,html body h2,html body h3,html body h4{margin:0;line-height:1.3}
  html body p{margin:0}
  html body button{font-family:inherit}
  .num{font-variant-numeric:tabular-nums}

  .container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}
  .section{padding:72px 0}
  .section.tight{padding:48px 0}
  .section-head{max-width:760px;margin-bottom:34px}
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    font-size:13px;letter-spacing:.06em;color:var(--brand);
    background:var(--brand-soft);border-radius:999px;padding:6px 14px;font-weight:600;
  }
  .section-head h2{font-size:clamp(22px,2.6vw,30px);font-weight:600;margin:16px 0 10px}
  .section-head p{color:var(--muted);font-size:15.5px}
  .divider{height:1px;background:var(--line);border:0;margin:0}

  /* ---------- header / nav ---------- */
  header.site-header{
    position:sticky;top:0;z-index:60;
    padding:14px 0 10px;
    background:rgba(247,249,252,.92);
    backdrop-filter:blur(10px);
    border-bottom:1px solid rgba(227,233,242,.9);
  }
  header.site-header .nav-panel{
    display:flex;align-items:center;gap:18px;
    background:var(--card);
    border:1px solid var(--line);
    border-radius:var(--r-panel);
    box-shadow:var(--sh-card);
    padding:12px 16px;
  }
  header.site-header .brand{display:flex;align-items:center;gap:10px;flex:none}
  header.site-header .brand-mark{
    width:38px;height:38px;border-radius:12px;
    background:var(--brand-soft);color:var(--brand);
    display:flex;align-items:center;justify-content:center;font-size:16px;flex:none;
  }
  header.site-header .brand-text{display:flex;flex-direction:column;line-height:1.2}
  header.site-header .brand-name{font-size:15px;font-weight:700;letter-spacing:.01em}
  header.site-header .brand-sub{font-size:11px;color:var(--muted);letter-spacing:.08em;text-transform:uppercase}
  header.site-header .nav-chips{display:flex;align-items:center;gap:6px;flex:1;min-width:0}
  header.site-header .nav-chip{
    display:inline-flex;align-items:center;gap:7px;
    padding:9px 13px;border-radius:12px;
    font-size:14px;color:var(--muted);white-space:nowrap;
    border:1px solid transparent;
    transition:background var(--t),color var(--t),border-color var(--t),transform var(--t);
  }
  header.site-header .nav-chip i{font-size:13px;color:var(--muted);transition:color var(--t)}
  header.site-header .nav-chip:hover{
    background:#fff;border-color:var(--brand);color:var(--brand);transform:translateY(-2px);
  }
  header.site-header .nav-chip:hover i{color:var(--brand)}
  header.site-header .nav-chip.is-active{
    background:var(--brand-soft);border-color:var(--brand-soft);color:var(--brand);font-weight:600;
  }
  header.site-header .nav-chip.is-active i{color:var(--brand)}
  header.site-header .nav-actions{display:flex;align-items:center;gap:10px;margin-left:auto;flex:none}
  header.site-header .burger{
    display:none;width:44px;height:44px;border-radius:12px;
    border:1px solid var(--line);background:#fff;color:var(--ink);
    align-items:center;justify-content:center;cursor:pointer;font-size:16px;
    transition:border-color var(--t),color var(--t);
  }
  header.site-header .burger:hover{border-color:var(--brand);color:var(--brand)}

  /* ---------- buttons ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:44px;padding:0 20px;border-radius:var(--r-btn);
    font-size:15px;font-weight:600;cursor:pointer;border:1px solid transparent;
    transition:background var(--t),color var(--t),border-color var(--t),box-shadow var(--t),transform var(--t);
  }
  .btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 20px -12px rgba(44,110,170,.9)}
  .btn-primary:hover{background:var(--brand-hover);box-shadow:var(--sh-hover);transform:translateY(-1px)}
  .btn-primary:active{background:var(--brand-active);transform:translateY(0)}
  .btn-outline{background:#fff;color:var(--brand);border-color:var(--brand)}
  .btn-outline:hover{background:var(--brand-soft)}
  .btn-soft{background:var(--brand-soft);color:var(--brand)}
  .btn-soft:hover{background:#DCEAF7}
  .btn-link{
    display:inline-flex;align-items:center;gap:6px;
    background:none;border:0;padding:0;cursor:pointer;
    color:var(--brand);font-size:14px;font-weight:600;
  }
  .btn-link:hover{text-decoration:underline;color:var(--brand-hover)}
  a.link{color:var(--brand);font-weight:600}
  a.link:hover{text-decoration:underline}

  /* ---------- page hero ---------- */
  .page-hero{
    position:relative;overflow:hidden;
    background:var(--brand-soft);
    border-bottom:1px solid var(--line);
  }
  .page-hero::before{
    content:"";position:absolute;inset:0;
    background-image:url('/assets/images/backpic/back-1.png');
    background-size:cover;background-position:center;
    opacity:.14;
  }
  .page-hero .container{position:relative;z-index:1;padding-top:34px;padding-bottom:56px}
  .crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted)}
  .crumbs a:hover{color:var(--brand)}
  .crumbs .sep{opacity:.6}
  .crumbs .now{color:var(--muted);opacity:.85}
  .hero-grid{
    display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);
    gap:40px;align-items:center;margin-top:26px;
  }
  .page-hero h1{font-size:clamp(28px,4vw,42px);font-weight:700;line-height:1.25;margin:16px 0 14px}
  .page-hero .lead{font-size:16.5px;color:var(--muted);max-width:560px}
  .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
  .hero-meta{
    display:flex;flex-wrap:wrap;align-items:center;gap:10px;
    margin-top:22px;font-size:13px;color:var(--muted);
  }
  .hero-meta .dot{width:5px;height:5px;border-radius:50%;background:var(--brand);opacity:.55}
  .hero-visual{position:relative}
  .hero-visual img{
    width:100%;aspect-ratio:16/11;object-fit:cover;
    border-radius:var(--r-card);border:1px solid var(--line);
    box-shadow:var(--sh-card);
  }
  .float-card{
    position:absolute;right:-8px;bottom:-22px;
    background:#fff;border:1px solid var(--line);border-radius:14px;
    box-shadow:var(--sh-hover);padding:14px 16px;min-width:186px;
  }
  .float-card .k{font-size:12px;color:var(--muted)}
  .float-card .v{font-size:20px;font-weight:700;color:var(--brand);font-variant-numeric:tabular-nums}

  /* ---------- 速览卡 ---------- */
  .quick-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
  .quick-card{
    position:relative;background:var(--card);border:1px solid var(--line);
    border-radius:var(--r-card);padding:22px 20px 20px 26px;box-shadow:var(--sh-card);
    transition:box-shadow var(--t),transform var(--t),border-color var(--t);
  }
  .quick-card::before{
    content:"";position:absolute;left:14px;top:22px;bottom:22px;width:3px;border-radius:3px;background:var(--brand);
  }
  .quick-card:hover{box-shadow:var(--sh-hover);transform:translateY(-2px);border-color:#D7E4F1}
  .quick-card h3{font-size:17px;font-weight:600;margin-bottom:8px}
  .quick-card p{font-size:14.5px;color:var(--muted);min-height:66px}
  .pill{
    display:inline-flex;align-items:center;gap:6px;
    font-size:12.5px;font-weight:600;color:var(--brand);
    background:var(--brand-soft);border-radius:999px;padding:4px 11px;margin-top:14px;
  }
  .pill.warm{color:#8a6111;background:#FBF1DC}
  .pill.ok{color:#0F7263;background:#E3F5F1}

  /* ---------- 对比卡 ---------- */
  .compare-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
  .compare-card{
    background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
    box-shadow:var(--sh-card);overflow:hidden;
    transition:box-shadow var(--t),transform var(--t);
  }
  .compare-card:hover{box-shadow:var(--sh-hover);transform:translateY(-2px)}
  .compare-head{
    display:flex;align-items:center;gap:10px;
    padding:18px 22px;border-bottom:1px solid var(--line);
  }
  .compare-head .ic{
    width:34px;height:34px;border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:14px;flex:none;
  }
  .compare-card.yes .compare-head{background:#F9FCFD}
  .compare-card.yes .ic{background:#E3F5F1;color:var(--success)}
  .compare-card.no .compare-head{background:#FFFBF5}
  .compare-card.no .ic{background:#FBF1DC;color:#A9741A}
  .compare-head h3{font-size:17px;font-weight:600}
  .compare-card ul{padding:8px 22px 20px}
  .compare-card li{display:flex;gap:11px;padding:13px 0;border-bottom:1px dashed var(--line)}
  .compare-card li:last-child{border-bottom:0}
  .compare-card li .mk{margin-top:4px;font-size:13px;flex:none}
  .compare-card.yes li .mk{color:var(--success)}
  .compare-card.no li .mk{color:#C08A24}
  .compare-card li strong{display:block;font-size:15px;font-weight:600;margin-bottom:3px}
  .compare-card li span{font-size:14px;color:var(--muted)}

  /* ---------- 清单 + 提示 ---------- */
  .check-wrap{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,.65fr);gap:22px;align-items:start}
  .check-card{
    background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
    box-shadow:var(--sh-card);padding:26px;
  }
  .check-card h3{font-size:19px;font-weight:600;margin-bottom:6px}
  .check-card .sub{font-size:14px;color:var(--muted);margin-bottom:18px}
  .check-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px 22px}
  .check-item{
    display:flex;align-items:center;gap:10px;
    padding:12px 14px;border:1px solid var(--line);border-radius:12px;background:#FCFDFF;
    font-size:14.5px;transition:border-color var(--t),background var(--t);
  }
  .check-item i{color:var(--success);font-size:13px}
  .check-item:hover{border-color:#CFE0EF;background:var(--brand-soft)}
  .side-note{
    background:#fff;border:1px solid var(--line);border-left:3px solid var(--accent);
    border-radius:var(--r-card);box-shadow:var(--sh-card);padding:24px;
  }
  .side-note h3{font-size:16px;font-weight:600;margin-bottom:12px}
  .side-note p{font-size:14px;color:var(--muted);margin-bottom:12px}
  .side-note .btn{width:100%;margin-top:6px}

  /* ---------- 数据带 ---------- */
  .stat-band{background:var(--brand);border-radius:var(--r-card);padding:38px 26px;color:#fff}
  .stat-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
  .stat{padding:0 18px}
  .stat + .stat{border-left:1px solid rgba(255,255,255,.24)}
  .stat .v{font-size:clamp(30px,3.4vw,40px);font-weight:700;line-height:1.1;font-variant-numeric:tabular-nums}
  .stat .v small{font-size:16px;font-weight:600;margin-left:2px}
  .stat .k{font-size:13px;color:rgba(255,255,255,.78);margin-top:8px}

  /* ---------- FAQ ---------- */
  .faq-list{display:flex;flex-direction:column;gap:12px}
  details.faq{
    background:var(--card);border:1px solid var(--line);border-radius:14px;
    box-shadow:var(--sh-card);overflow:hidden;transition:background var(--t),border-color var(--t);
  }
  details.faq[open]{background:#F7F9FC;border-color:#D4E2EF}
  details.faq summary{
    list-style:none;cursor:pointer;display:flex;align-items:center;gap:14px;
    min-height:56px;padding:14px 20px;font-size:16px;font-weight:600;
  }
  details.faq summary::-webkit-details-marker{display:none}
  details.faq summary .plus{
    margin-left:auto;width:26px;height:26px;border-radius:50%;
    border:1px solid var(--line);display:flex;align-items:center;justify-content:center;
    color:var(--brand);font-size:12px;flex:none;transition:transform var(--t),background var(--t);
  }
  details.faq[open] summary .plus{transform:rotate(45deg);background:var(--brand-soft)}
  details.faq .ans{padding:0 20px 20px;font-size:15px;line-height:1.8;color:var(--muted)}

  /* ---------- CTA ---------- */
  .cta-band{
    background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
    box-shadow:var(--sh-card);padding:38px;display:grid;
    grid-template-columns:minmax(0,1.4fr) minmax(0,.6fr);gap:28px;align-items:center;
  }
  .cta-band h2{font-size:clamp(21px,2.4vw,27px);font-weight:600;margin-bottom:10px}
  .cta-band p{color:var(--muted);font-size:15px}
  .cta-actions{display:flex;flex-direction:column;gap:12px}
  .privacy-note{
    display:flex;flex-wrap:wrap;gap:14px 28px;align-items:center;
    margin-top:18px;font-size:13px;color:var(--muted);
  }
  .privacy-note span{display:inline-flex;align-items:center;gap:7px}
  .privacy-note i{color:var(--brand)}

  /* ---------- 相关分类 ---------- */
  .rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
  .rel-card{
    display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);
    border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-card);
    transition:box-shadow var(--t),transform var(--t);
  }
  .rel-card:hover{box-shadow:var(--sh-hover);transform:translateY(-2px)}
  .rel-card img{width:100%;aspect-ratio:16/9;object-fit:cover}
  .rel-body{padding:20px}
  .rel-body h3{font-size:16.5px;font-weight:600;margin-bottom:8px}
  .rel-body p{font-size:14px;color:var(--muted);margin-bottom:14px}

  /* ---------- modal ---------- */
  .modal-mask{
    position:fixed;inset:0;z-index:90;background:rgba(23,32,46,.48);
    display:none;align-items:center;justify-content:center;padding:20px;
  }
  .modal-mask.open{display:flex}
  .modal-card{
    position:relative;width:100%;max-width:480px;background:#fff;
    border-radius:20px;box-shadow:0 30px 60px -24px rgba(23,32,46,.45);
    padding:28px;max-height:90vh;overflow:auto;
  }
  .modal-close{
    position:absolute;top:14px;right:14px;width:36px;height:36px;border-radius:50%;
    border:1px solid var(--line);background:#fff;color:var(--muted);cursor:pointer;
    display:flex;align-items:center;justify-content:center;
    transition:border-color var(--t),color var(--t);
  }
  .modal-close:hover{border-color:var(--brand);color:var(--brand)}
  .modal-card h3{font-size:20px;font-weight:600;margin-bottom:6px}
  .modal-card .tip{font-size:13.5px;color:var(--muted);margin-bottom:20px}
  .field{margin-bottom:14px}
  .field label{display:block;font-size:13.5px;font-weight:600;margin-bottom:6px}
  .field input,.field select,.field textarea{
    width:100%;border:1px solid var(--line);border-radius:var(--r-btn);
    padding:0 12px;height:44px;font-size:15px;color:var(--ink);background:#fff;
    transition:border-color var(--t),box-shadow var(--t);
  }
  .field textarea{height:88px;padding:10px 12px;line-height:1.6;resize:vertical}
  .field input:focus,.field select:focus,.field textarea:focus{
    outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(44,110,170,.14);
  }
  .field.err input,.field.err select{border-color:var(--danger)}
  .check-line{display:flex;align-items:flex-start;gap:9px;font-size:13.5px;color:var(--muted);margin:16px 0}
  .check-line input{width:16px;height:16px;margin-top:3px;accent-color:var(--brand)}
  .form-ok{text-align:center;padding:16px 4px}
  .form-ok .ic{
    width:56px;height:56px;border-radius:50%;background:#E3F5F1;color:var(--success);
    display:flex;align-items:center;justify-content:center;font-size:22px;margin:0 auto 16px;
  }
  .form-ok h3{font-size:19px;margin-bottom:8px}
  .form-ok p{font-size:14px;color:var(--muted);margin-bottom:20px}

  /* ---------- drawer ---------- */
  .drawer-mask{
    position:fixed;inset:0;z-index:80;background:rgba(23,32,46,.42);
    display:none;
  }
  .drawer-mask.open{display:block}
  .drawer{
    position:fixed;top:0;right:0;bottom:0;z-index:85;width:min(320px,86vw);
    background:#fff;box-shadow:-20px 0 40px -20px rgba(23,32,46,.35);
    padding:20px;transform:translateX(102%);transition:transform 220ms ease-out;
    overflow:auto;
  }
  .drawer.open{transform:translateX(0)}
  .drawer .drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}
  .drawer .drawer-head strong{font-size:15px}
  .drawer .drawer-close{
    width:36px;height:36px;border-radius:50%;border:1px solid var(--line);background:#fff;
    color:var(--muted);cursor:pointer;display:flex;align-items:center;justify-content:center;
  }
  .drawer a.d-item{
    display:flex;align-items:center;gap:12px;min-height:48px;padding:0 14px;
    border:1px solid var(--line);border-radius:12px;margin-bottom:10px;
    font-size:15px;color:var(--ink);transition:border-color var(--t),background var(--t),color var(--t);
  }
  .drawer a.d-item i{color:var(--muted)}
  .drawer a.d-item:hover,.drawer a.d-item.is-active{
    border-color:var(--brand);background:var(--brand-soft);color:var(--brand);
  }
  .drawer a.d-item:hover i,.drawer a.d-item.is-active i{color:var(--brand)}

  /* ---------- focus ---------- */
  a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
    outline:2px solid var(--brand);outline-offset:2px;border-radius:8px;
  }

  /* ---------- footer ---------- */
  footer.site-footer{
    margin-top:56px;background:#fff;border-top:1px solid var(--line);padding:52px 0 26px;
  }
  footer.site-footer .footer-grid{
    display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:24px;
  }
  footer.site-footer .footer-col h4{font-size:14.5px;font-weight:700;margin-bottom:14px}
  footer.site-footer .footer-col p{font-size:14px;color:var(--muted);margin-bottom:10px}
  footer.site-footer .footer-col a{font-size:14px;color:var(--muted);display:inline-block;padding:3px 0}
  footer.site-footer .footer-col a:hover{color:var(--brand)}
  footer.site-footer .brand{display:flex;align-items:center;gap:10px}
  footer.site-footer .brand-mark{
    width:38px;height:38px;border-radius:12px;background:var(--brand-soft);color:var(--brand);
    display:flex;align-items:center;justify-content:center;flex:none;
  }
  footer.site-footer .brand-text{display:flex;flex-direction:column;line-height:1.2}
  footer.site-footer .brand-name{font-size:15px;font-weight:700}
  footer.site-footer .brand-sub{font-size:11px;color:var(--muted);letter-spacing:.08em;text-transform:uppercase}
  footer.site-footer .footer-bottom{
    margin-top:34px;padding-top:18px;border-top:1px solid var(--line);
    display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
    font-size:13px;color:var(--muted);
  }

  /* ---------- responsive ---------- */
  @media (max-width:1023px){
    header.site-header .nav-chips{display:none}
    header.site-header .burger{display:inline-flex}
    .hero-grid{grid-template-columns:1fr;gap:30px}
    .float-card{right:12px;bottom:-18px}
    .quick-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
    .check-wrap{grid-template-columns:1fr}
    .stat-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:26px 0}
    .stat{padding:0 14px}
    .stat:nth-child(odd){border-left:0;padding-left:0}
    .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
    .cta-band{grid-template-columns:1fr;padding:30px}
    footer.site-footer .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  }
  @media (max-width:767px){
    .section{padding:52px 0}
    .compare-grid{grid-template-columns:1fr}
    .check-list{grid-template-columns:1fr}
    .rel-grid{grid-template-columns:1fr}
    .quick-grid{grid-template-columns:1fr}
    .page-hero .container{padding-top:22px;padding-bottom:42px}
    .hero-actions .btn{width:100%}
  }
  @media (max-width:520px){
    .container{padding:0 16px}
    footer.site-footer .footer-grid{grid-template-columns:1fr}
    .btn{min-height:48px}
    .stat-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
    .modal-mask{align-items:flex-end;padding:0}
    .modal-card{border-radius:20px 20px 0 0;max-width:100%}
  }
  @media (prefers-reduced-motion:reduce){
    *{transition:none !important;animation:none !important}
    .quick-card:hover,.compare-card:hover,.rel-card:hover,.btn-primary:hover{transform:none}
  }

/* roulang page: category2 */
:root{
  --brand:#2C6EAA;
  --brand-hover:#235A8C;
  --brand-active:#1C4A75;
  --brand-soft:#EAF2FA;
  --accent:#D99A2B;
  --success:#1F9E8A;
  --ink:#17202E;
  --muted:#55637A;
  --line:#E3E9F2;
  --bg:#F7F9FC;
  --card:#FFFFFF;
  --r-card:16px;
  --r-btn:10px;
  --r-img:12px;
  --shadow-card:0 1px 2px rgba(23,32,46,.04),0 10px 28px -14px rgba(23,32,46,.14);
  --shadow-hover:0 16px 34px -14px rgba(23,32,46,.22);
  --ease:180ms ease-out;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
.container{max-width:1200px;margin:0 auto;padding:0 20px}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  padding:14px 0;
  background:var(--bg);
  border-bottom:1px solid var(--line);
}
.nav-panel{
  display:flex;
  align-items:center;
  gap:18px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:18px;
  padding:12px 16px;
  box-shadow:var(--shadow-card);
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:38px;height:38px;border-radius:11px;
  background:var(--brand);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-size:16px;flex-shrink:0;
}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-name{font-weight:700;font-size:15px;color:var(--ink);white-space:nowrap}
.brand-sub{font-size:11px;color:var(--muted);letter-spacing:.04em;white-space:nowrap}
.nav-chips{display:flex;align-items:center;gap:8px;flex:1;min-width:0}
.nav-chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:9px 12px;border:1px solid var(--line);border-radius:10px;
  font-size:14px;color:var(--muted);white-space:nowrap;
  transition:border-color var(--ease),color var(--ease),background-color var(--ease),transform var(--ease);
}
.nav-chip i{font-size:13px;color:var(--muted);transition:color var(--ease)}
.nav-chip:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px)}
.nav-chip:hover i{color:var(--brand)}
.nav-chip.is-active{background:var(--brand-soft);border-color:var(--brand-soft);color:var(--brand);font-weight:600}
.nav-chip.is-active i{color:var(--brand)}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:auto;flex-shrink:0}
.burger{
  display:none;width:44px;height:44px;border-radius:10px;
  border:1px solid var(--line);background:#fff;color:var(--ink);
  align-items:center;justify-content:center;font-size:16px;cursor:pointer;
  transition:border-color var(--ease),color var(--ease);
}
.burger:hover{border-color:var(--brand);color:var(--brand)}
.nav-overlay{
  position:fixed;inset:0;background:rgba(23,32,46,.45);
  opacity:0;visibility:hidden;transition:opacity .2s ease-out;
  z-index:70;
}
body.nav-open .nav-overlay{opacity:1;visibility:visible}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--r-btn);
  border:1px solid transparent;font-size:15px;font-weight:600;
  cursor:pointer;white-space:nowrap;
  transition:background-color var(--ease),color var(--ease),border-color var(--ease),box-shadow var(--ease),transform var(--ease);
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 20px -12px rgba(44,110,170,.9)}
.btn-primary:hover{background:var(--brand-hover);transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.btn-primary:active{background:var(--brand-active);transform:translateY(0)}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--brand)}
.btn-ghost:hover{background:var(--brand-soft);transform:translateY(-2px)}
.btn-block{width:100%}
.btn-link{
  background:none;border:0;padding:0;color:var(--brand);
  font-size:14px;cursor:pointer;display:inline-flex;align-items:center;gap:6px;
}
.btn-link:hover{text-decoration:underline}

/* ---------- 面包屑 & 页头 ---------- */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--muted);padding:20px 0 0;
}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:#B7C2D3}
.breadcrumb .current{color:var(--muted)}

.page-hero{
  position:relative;overflow:hidden;
  margin-top:18px;
  background:var(--brand-soft);
  border:1px solid var(--line);
  border-radius:20px;
  padding:46px 40px;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  opacity:.14;
}
.page-hero > *{position:relative;z-index:1}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 12px;border-radius:999px;
  font-size:13px;font-weight:500;
  background:#fff;color:var(--brand);border:1px solid var(--line);
}
.page-hero h1{
  margin-top:16px;
  font-size:clamp(28px,4vw,44px);
  font-weight:700;line-height:1.25;
  letter-spacing:-.01em;
}
.hero-sub{margin-top:14px;font-size:17px;color:var(--brand-active);font-weight:600;max-width:640px}
.hero-lead{margin-top:12px;font-size:16px;color:var(--muted);max-width:680px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.hero-trust{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  margin-top:22px;font-size:13px;color:var(--muted);
}
.hero-trust span{display:inline-flex;align-items:center;gap:8px}
.hero-trust span + span::before{
  content:"";width:4px;height:4px;border-radius:50%;
  background:#B7C2D3;display:inline-block;margin-right:2px;
}

/* ---------- 通用板块 ---------- */
.section{padding:48px 0}
.section-tight{padding:24px 0 0}
.section-head{
  display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;
  gap:14px;margin-bottom:26px;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13px;font-weight:600;color:var(--brand);
  letter-spacing:.02em;margin-bottom:8px;
}
.section-head h2{font-size:clamp(22px,2.6vw,30px);font-weight:600}
.section-head p.section-desc{margin-top:10px;font-size:15px;color:var(--muted);max-width:720px}
.link-more{font-size:14px;color:var(--brand);display:inline-flex;align-items:center;gap:6px}
.link-more:hover{text-decoration:underline}

/* ---------- 卡片通用 ---------- */
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-card);padding:24px;
  transition:box-shadow var(--ease),transform var(--ease),border-color var(--ease);
}
.card:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px)}

/* ---------- 三件事：1 大 + 2 小 ---------- */
.feature-grid{display:grid;grid-template-columns:2fr 1fr;gap:22px}
.feature-main{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-card);padding:30px;
  border-left:3px solid var(--brand);
  transition:box-shadow var(--ease),transform var(--ease);
}
.feature-main:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px)}
.feature-main h3{font-size:20px;font-weight:600;margin-top:14px}
.feature-main p{margin-top:10px;color:var(--muted);font-size:15px}
.icon-badge{
  width:44px;height:44px;border-radius:12px;
  background:var(--brand-soft);color:var(--brand);
  display:inline-flex;align-items:center;justify-content:center;font-size:18px;
}
.point-list{margin-top:18px;display:grid;gap:10px}
.point-list li{display:flex;gap:10px;font-size:15px;color:var(--muted)}
.point-list i{color:var(--success);margin-top:5px;font-size:13px}
.feature-side{display:grid;gap:22px}
.feature-side .card h3{font-size:17px;font-weight:600;margin-top:12px}
.feature-side .card p{margin-top:8px;font-size:14px;color:var(--muted)}

/* ---------- 数据带 ---------- */
.stat-band{
  background:var(--ink);border-radius:20px;padding:34px 30px;
  display:grid;grid-template-columns:repeat(4,1fr);gap:22px;
}
.stat-item{border-left:1px solid rgba(255,255,255,.14);padding-left:20px}
.stat-item:first-child{border-left:0;padding-left:0}
.stat-num{
  font-size:clamp(26px,3.4vw,38px);font-weight:700;color:#fff;
  font-variant-numeric:tabular-nums;line-height:1.2;
}
.stat-num.accent{color:#F0C271}
.stat-desc{margin-top:8px;font-size:13px;line-height:1.6;color:rgba(255,255,255,.64)}

/* ---------- 竖向步骤轴 ---------- */
.steps{margin-top:6px}
.step{
  position:relative;display:grid;grid-template-columns:56px 1fr;gap:20px;
  padding-bottom:32px;
}
.step::before{
  content:"";position:absolute;left:27px;top:58px;bottom:0;width:2px;
  background:var(--line);
}
.step:last-child{padding-bottom:0}
.step:last-child::before{display:none}
.step-num{
  width:56px;height:56px;border-radius:50%;
  background:#fff;border:2px solid var(--brand);color:var(--brand);
  display:flex;align-items:center;justify-content:center;
  font-weight:700;font-size:17px;font-variant-numeric:tabular-nums;
  position:relative;z-index:1;
}
.step-body{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-card);padding:20px 24px;
  transition:box-shadow var(--ease),transform var(--ease);
}
.step-body:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px)}
.step-body h3{font-size:17px;font-weight:600}
.step-body p{margin-top:8px;font-size:15px;color:var(--muted)}
.step-meta{
  display:inline-flex;align-items:center;gap:6px;
  margin-top:12px;font-size:13px;color:var(--brand);
  background:var(--brand-soft);border-radius:999px;padding:4px 10px;
}

/* ---------- 图文区 ---------- */
.split{display:grid;grid-template-columns:1.05fr 1fr;gap:30px;align-items:center}
.split-media{
  border-radius:var(--r-img);overflow:hidden;
  border:1px solid var(--line);background:var(--brand-soft);
  box-shadow:var(--shadow-card);
}
.split-media img{width:100%;aspect-ratio:16/9;object-fit:cover}
.role-list{display:grid;gap:14px}
.role-list li{
  background:var(--card);border:1px solid var(--line);border-radius:14px;
  padding:18px 20px;border-left:3px solid var(--brand);
  transition:box-shadow var(--ease),transform var(--ease);
}
.role-list li:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px)}
.role-name{
  display:inline-flex;align-items:center;gap:8px;
  font-size:16px;font-weight:600;color:var(--ink);
}
.role-name::before{
  content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);
}
.role-list p{margin-top:8px;font-size:14px;color:var(--muted)}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:12px}
.faq-item{
  background:var(--card);border:1px solid var(--line);border-radius:14px;overflow:hidden;
}
.faq-item summary{
  list-style:none;cursor:pointer;
  min-height:56px;display:flex;align-items:center;justify-content:space-between;
  gap:16px;padding:14px 20px;font-size:16px;font-weight:600;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-icon{
  color:var(--brand);font-size:15px;flex-shrink:0;
  transition:transform var(--ease);
}
.faq-item[open] .faq-icon{transform:rotate(45deg)}
.faq-body{
  padding:0 20px 18px;font-size:15px;line-height:1.85;color:var(--muted);
}
.faq-item[open]{border-color:#D6E4F2}
.faq-item[open] .faq-body{padding-top:14px;border-top:1px solid var(--line);background:var(--bg)}

/* ---------- CTA ---------- */
.cta-card{
  background:var(--card);border:1px solid var(--line);border-radius:20px;
  box-shadow:var(--shadow-card);padding:36px;
  display:grid;gap:22px;
  border-top:3px solid var(--brand);
}
.cta-card h2{font-size:clamp(20px,2.4vw,26px);font-weight:600}
.cta-card p.cta-desc{margin-top:10px;font-size:15px;color:var(--muted);max-width:620px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}
.privacy-note{
  display:flex;align-items:flex-start;gap:8px;
  font-size:13px;color:var(--muted);border-top:1px solid var(--line);padding-top:16px;
}
.privacy-note i{color:var(--brand);margin-top:4px}

/* ---------- 相关分类 ---------- */
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.related-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-card);
  transition:box-shadow var(--ease),transform var(--ease),border-color var(--ease);
}
.related-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px);border-color:#CFE0F0}
.related-card img{width:100%;aspect-ratio:16/9;object-fit:cover;background:var(--brand-soft)}
.related-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:8px;flex:1}
.related-body h3{font-size:17px;font-weight:600}
.related-body p{font-size:14px;color:var(--muted);flex:1}
.related-link{font-size:14px;color:var(--brand);display:inline-flex;align-items:center;gap:6px;margin-top:4px}
.related-card:hover .related-link{text-decoration:underline}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:64px;background:#fff;border-top:1px solid var(--line);
  padding:52px 0 22px;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:24px}
.footer-col h4{font-size:15px;font-weight:600;margin-bottom:14px}
.footer-col ul{display:grid;gap:10px}
.footer-col a,.footer-col p{font-size:14px;color:var(--muted)}
.footer-col a:hover{color:var(--brand)}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  border-top:1px solid var(--line);margin-top:38px;padding-top:18px;
  font-size:13px;color:var(--muted);
}

/* ---------- 弹层表单 ---------- */
.modal{
  position:fixed;inset:0;z-index:120;display:none;
  align-items:center;justify-content:center;padding:20px;
}
.modal.is-open{display:flex}
.modal-mask{position:absolute;inset:0;background:rgba(23,32,46,.48)}
.modal-card{
  position:relative;width:100%;max-width:480px;background:#fff;
  border-radius:20px;padding:28px;max-height:90vh;overflow-y:auto;
  box-shadow:0 30px 60px -30px rgba(23,32,46,.45);
}
.modal-close{
  position:absolute;top:16px;right:16px;width:36px;height:36px;border-radius:50%;
  border:1px solid var(--line);background:#fff;color:var(--muted);
  display:flex;align-items:center;justify-content:center;cursor:pointer;
  transition:border-color var(--ease),color var(--ease);
}
.modal-close:hover{border-color:var(--brand);color:var(--brand)}
.modal-card h3{font-size:20px;font-weight:600;padding-right:40px}
.modal-desc{margin-top:10px;font-size:14px;color:var(--muted)}
.field{margin-top:16px;display:grid;gap:6px}
.field label{font-size:14px;font-weight:500;color:var(--ink)}
.field input,.field select,.field textarea{
  width:100%;border:1px solid var(--line);border-radius:var(--r-btn);
  padding:11px 13px;font-size:15px;font-family:inherit;color:var(--ink);
  background:#fff;outline:none;
  transition:border-color var(--ease),box-shadow var(--ease);
}
.field input,.field select{height:44px;padding:0 13px}
.field textarea{resize:vertical;line-height:1.6}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--brand);box-shadow:0 0 0 3px rgba(44,110,170,.14);
}
.field input.is-error,.field textarea.is-error{border-color:#D9534F}
.check{
  display:flex;align-items:flex-start;gap:9px;margin-top:16px;
  font-size:13px;color:var(--muted);line-height:1.6;cursor:pointer;
}
.check input{width:18px;height:18px;margin-top:2px;accent-color:var(--brand);flex-shrink:0}
form .btn-block{margin-top:18px}
.form-error{
  margin-top:12px;font-size:13px;color:#D9534F;
  background:#FDEDED;border-radius:10px;padding:10px 12px;
}
.form-success{text-align:center;padding:16px 4px 4px;display:grid;gap:12px;justify-items:center}
.form-success i{font-size:38px;color:var(--success)}
.form-success h4{font-size:19px;font-weight:600}
.form-success p{font-size:14px;color:var(--muted)}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .nav-chips{
    position:fixed;top:0;right:0;bottom:0;width:min(320px,86vw);
    background:#fff;flex-direction:column;align-items:stretch;gap:8px;
    padding:84px 18px 24px;margin:0;overflow-y:auto;
    box-shadow:-16px 0 40px -20px rgba(23,32,46,.35);
    transform:translateX(105%);transition:transform .24s ease-out;
    z-index:80;
  }
  body.nav-open .nav-chips{transform:translateX(0)}
  .nav-chip{
    height:48px;padding:0 14px;font-size:15px;border-radius:12px;
    display:flex;align-items:center;
  }
  .burger{display:flex}
  .feature-grid{grid-template-columns:1fr}
  .split{grid-template-columns:1fr}
  .stat-band{grid-template-columns:1fr 1fr;gap:26px}
  .stat-item:nth-child(3){border-left:0;padding-left:0}
  .footer-grid{grid-template-columns:1fr 1fr}
  .related-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:639px){
  .container{padding:0 16px}
  .page-hero{padding:32px 22px;border-radius:18px}
  .btn{height:48px}
  .nav-actions .btn-primary{display:none}
  .stat-band{grid-template-columns:1fr;padding:28px 22px}
  .stat-item{border-left:0;padding-left:0}
  .footer-grid{grid-template-columns:1fr}
  .related-grid{grid-template-columns:1fr}
  .cta-card{padding:26px 22px}
  .modal{align-items:flex-end;padding:0}
  .modal-card{max-width:100%;border-radius:20px 20px 0 0;max-height:88vh}
  .step{grid-template-columns:46px 1fr;gap:14px}
  .step::before{left:22px;top:50px}
  .step-num{width:46px;height:46px;font-size:15px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
  .card:hover,.feature-main:hover,.step-body:hover,.related-card:hover,.role-list li:hover,.btn:hover{transform:none}
}

/* roulang page: category4 */
:root{
  --primary:#2C6EAA;
  --primary-hover:#235A8C;
  --primary-active:#1C4A75;
  --primary-soft:#EAF2FA;
  --accent:#D99A2B;
  --success:#1F9E8A;
  --ink:#17202E;
  --muted:#55637A;
  --border:#E3E9F2;
  --bg:#F7F9FC;
  --card:#FFFFFF;
  --r-card:16px;
  --r-btn:10px;
  --shadow-card:0 1px 2px rgba(23,32,46,.04), 0 10px 28px -14px rgba(23,32,46,.14);
  --shadow-hover:0 16px 34px -14px rgba(23,32,46,.22);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;line-height:1.75;color:var(--ink);background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none}
a{color:var(--primary);text-decoration:none;transition:color .16s ease-out}
a:hover{color:var(--primary-hover)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
.section{padding:56px 0}
@media(min-width:1024px){.section{padding:76px 0}}
.section-alt{background:#fff;border-top:1px solid var(--border);border-bottom:1px solid var(--border)}

/* ---------- Header / Nav ---------- */
.site-header{position:sticky;top:0;z-index:60;padding:14px 0;background:rgba(247,249,252,.94);backdrop-filter:blur(10px);border-bottom:1px solid var(--border)}
.nav-panel{
  display:flex;align-items:center;gap:16px;
  background:var(--card);border:1px solid var(--border);border-radius:18px;
  padding:10px 14px;box-shadow:var(--shadow-card);
}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink);flex:0 0 auto}
.brand:hover{color:var(--ink)}
.brand-mark{
  width:38px;height:38px;border-radius:11px;background:var(--primary);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;font-size:17px;flex:0 0 auto;
}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-name{font-size:15px;font-weight:700;letter-spacing:.01em;white-space:nowrap}
.brand-sub{font-size:10.5px;color:var(--muted);letter-spacing:.12em;text-transform:uppercase}
.nav-chips{display:flex;align-items:center;gap:8px;margin-left:auto}
.nav-chip{
  display:inline-flex;align-items:center;gap:7px;
  min-height:44px;padding:0 13px;border:1px solid var(--border);border-radius:12px;
  background:#FCFDFF;color:var(--muted);font-size:14px;font-weight:500;
  transition:transform .18s ease-out,border-color .18s,color .18s,box-shadow .18s,background .18s;
  white-space:nowrap;
}
.nav-chip i{font-size:13px;color:#8A98AE;transition:color .18s}
.nav-chip:hover{
  color:var(--primary);border-color:rgba(44,110,170,.45);
  transform:translateY(-2px);box-shadow:0 8px 18px -12px rgba(44,110,170,.7);background:#fff;
}
.nav-chip:hover i{color:var(--primary)}
.nav-chip.is-active{
  background:var(--primary-soft);color:var(--primary);border-color:rgba(44,110,170,.4);font-weight:600;
}
.nav-chip.is-active i{color:var(--primary)}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:4px}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 18px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;white-space:nowrap;
  transition:background .18s ease-out,color .18s,border-color .18s,box-shadow .18s,transform .18s;
}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-hover);color:#fff;transform:translateY(-1px);box-shadow:0 12px 24px -12px rgba(44,110,170,.85)}
.btn-primary:active{background:var(--primary-active);transform:translateY(0)}
.btn-outline{background:#fff;color:var(--primary);border-color:rgba(44,110,170,.45)}
.btn-outline:hover{background:var(--primary-soft);color:var(--primary-hover);transform:translateY(-1px)}
.btn-outline:active{background:#DCEAF7;transform:translateY(0)}
.btn-link{background:none;border:0;padding:0;color:var(--primary);font-size:14px;font-weight:600;cursor:pointer;display:inline-flex;align-items:center;gap:6px}
.btn-link:hover{color:var(--primary-hover);text-decoration:underline}
.btn-block{width:100%}
.burger{
  display:none;width:44px;height:44px;border-radius:var(--r-btn);border:1px solid var(--border);
  background:#fff;color:var(--ink);cursor:pointer;align-items:center;justify-content:center;
}
.burger:hover{border-color:rgba(44,110,170,.45);color:var(--primary)}

/* ---------- Drawer ---------- */
.drawer-mask{position:fixed;inset:0;background:rgba(23,32,46,.42);opacity:0;visibility:hidden;transition:opacity .2s ease-out;z-index:80}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:318px;max-width:86vw;background:#fff;
  border-left:1px solid var(--border);box-shadow:-24px 0 48px -24px rgba(23,32,46,.35);
  transform:translateX(103%);transition:transform .24s ease-out;z-index:90;
  padding:18px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px}
.drawer-close{
  width:36px;height:36px;border-radius:50%;border:1px solid var(--border);background:#fff;
  color:var(--muted);cursor:pointer;display:inline-flex;align-items:center;justify-content:center;
}
.drawer-close:hover{color:var(--primary);border-color:rgba(44,110,170,.45)}
.drawer-nav{display:flex;flex-direction:column;gap:8px}
.drawer-nav a{
  display:flex;align-items:center;gap:10px;min-height:48px;padding:0 14px;
  border:1px solid var(--border);border-radius:12px;color:var(--muted);font-size:15px;font-weight:500;background:#FCFDFF;
}
.drawer-nav a i{width:18px;text-align:center;color:#8A98AE}
.drawer-nav a:hover{color:var(--primary);border-color:rgba(44,110,170,.45)}
.drawer-nav a.is-active{background:var(--primary-soft);color:var(--primary);border-color:rgba(44,110,170,.4);font-weight:600}
.drawer-nav a.is-active i{color:var(--primary)}
.drawer-cta{margin-top:18px;width:100%}

/* ---------- Page hero ---------- */
.page-hero{position:relative;overflow:hidden;background:var(--primary-soft);border-bottom:1px solid var(--border);padding:34px 0 46px}
.page-hero-bg{position:absolute;inset:0;background-image:url(/assets/images/backpic/back-2.png);background-size:cover;background-position:center;opacity:.16}
.page-hero::after{content:"";position:absolute;inset:0;background:linear-gradient(92deg,rgba(234,242,250,.97) 0%,rgba(234,242,250,.86) 48%,rgba(234,242,250,.6) 100%)}
.page-hero .container{position:relative;z-index:2}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:20px}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{color:#AFBACA}
.breadcrumb .current{color:var(--muted)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;background:#fff;border:1px solid rgba(44,110,170,.28);
  color:var(--primary);border-radius:999px;padding:6px 14px;font-size:13px;font-weight:600;margin-bottom:16px;
}
.page-title{font-size:clamp(28px,4vw,42px);font-weight:700;line-height:1.25;letter-spacing:-.01em}
.page-lead{margin-top:16px;font-size:17px;color:var(--muted);max-width:760px}
.hero-tags{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:22px}
.hero-tags span{
  display:inline-flex;align-items:center;gap:7px;background:#fff;border:1px solid var(--border);
  border-radius:10px;padding:7px 13px;font-size:13px;color:var(--muted);font-weight:500;
}
.hero-tags span i{color:var(--primary)}

/* ---------- Section heading ---------- */
.sec-head{max-width:760px;margin-bottom:30px}
.sec-kicker{display:block;font-size:13px;font-weight:700;letter-spacing:.1em;color:var(--primary);margin-bottom:10px;text-transform:uppercase}
.sec-title{font-size:clamp(22px,2.6vw,30px);font-weight:600;line-height:1.35;letter-spacing:-.005em}
.sec-desc{margin-top:12px;font-size:16px;color:var(--muted)}

/* ---------- Split layout (摘要 + 条目) ---------- */
.split-layout{display:grid;grid-template-columns:minmax(0,342px) minmax(0,1fr);gap:24px;align-items:start}
.summary-card{
  background:var(--card);border:1px solid var(--border);border-radius:var(--r-card);
  box-shadow:var(--shadow-card);padding:22px;position:sticky;top:104px;
}
.summary-title{font-size:18px;font-weight:700;display:flex;align-items:center;gap:9px}
.summary-title i{color:var(--primary)}
.summary-note{margin-top:8px;font-size:13px;color:var(--muted)}
.summary-list{margin-top:18px;display:flex;flex-direction:column;gap:12px}
.summary-list li{display:flex;gap:10px;font-size:14.5px;line-height:1.7;color:var(--ink)}
.summary-list li i{color:var(--success);font-size:15px;margin-top:5px;flex:0 0 auto}
.summary-figure{margin-top:20px;border-radius:12px;overflow:hidden;border:1px solid var(--border);background:#EEF3F9}
.summary-figure img{width:100%;aspect-ratio:16/9;object-fit:cover}
.summary-figure figcaption{padding:9px 12px;font-size:12.5px;color:var(--muted);background:#fff}

.entry-panel{background:var(--card);border:1px solid var(--border);border-radius:var(--r-card);box-shadow:var(--shadow-card);overflow:hidden}
.entry-panel-head{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;padding:20px 22px;border-bottom:1px solid var(--border);background:#FCFDFF}
.entry-panel-head h3{font-size:17px;font-weight:700}
.entry-panel-head p{font-size:13px;color:var(--muted)}
.pill{display:inline-flex;align-items:center;gap:6px;background:var(--primary-soft);color:var(--primary);border-radius:999px;padding:5px 12px;font-size:12.5px;font-weight:600}
.entry-item{display:flex;gap:16px;padding:18px 22px;border-top:1px solid var(--border);transition:background .16s ease-out}
.entry-item:first-child{border-top:0}
.entry-item:hover{background:#FBFCFE}
.entry-num{
  flex:0 0 auto;width:34px;height:34px;border-radius:10px;background:var(--primary-soft);color:var(--primary);
  font-size:14px;font-weight:700;display:inline-flex;align-items:center;justify-content:center;
  font-variant-numeric:tabular-nums;
}
.entry-body{min-width:0;flex:1 1 auto}
.entry-body h4{font-size:16.5px;font-weight:600;line-height:1.5}
.entry-body p{margin-top:5px;font-size:14px;color:var(--muted)}
.entry-link{
  flex:0 0 auto;align-self:center;display:inline-flex;align-items:center;gap:6px;font-size:13.5px;
  font-weight:600;color:var(--primary);border:1px solid var(--border);border-radius:9px;padding:9px 13px;
  transition:border-color .18s,background .18s,transform .18s;
}
.entry-link:hover{border-color:rgba(44,110,170,.5);background:var(--primary-soft);transform:translateY(-1px)}

/* ---------- Hint table card ---------- */
.hint-list{display:flex;flex-direction:column;gap:14px}
.hint-head{display:grid;grid-template-columns:1.1fr 1.35fr 1fr;gap:16px;padding:0 20px 10px;font-size:13px;font-weight:700;color:var(--muted);letter-spacing:.04em}
.hint-row{
  display:grid;grid-template-columns:1.1fr 1.35fr 1fr;gap:16px;align-items:center;
  background:var(--card);border:1px solid var(--border);border-radius:14px;padding:16px 20px;
  box-shadow:var(--shadow-card);transition:box-shadow .18s ease-out,transform .18s ease-out,border-color .18s;
}
.hint-row:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px);border-color:rgba(44,110,170,.28)}
.hint-msg{font-size:15px;font-weight:600;display:flex;align-items:center;gap:9px}
.hint-msg i{color:var(--accent)}
.hint-mean{font-size:14px;color:var(--muted)}
.hint-act{font-size:14px;font-weight:600;color:var(--primary);display:inline-flex;align-items:center;gap:7px}

/* ---------- Stat band ---------- */
.stat-band{
  background:var(--primary);border-radius:20px;padding:34px 30px;color:#fff;
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px;
  box-shadow:0 24px 48px -30px rgba(44,110,170,.85);
}
.stat-item{padding-left:20px;border-left:1px solid rgba(255,255,255,.24)}
.stat-item:first-child{padding-left:0;border-left:0}
.stat-num{font-size:clamp(32px,3.4vw,42px);font-weight:700;line-height:1.1;font-variant-numeric:tabular-nums;letter-spacing:-.02em}
.stat-num em{font-style:normal;font-size:18px;font-weight:600;margin-left:2px;opacity:.85}
.stat-desc{margin-top:8px;font-size:13px;color:rgba(255,255,255,.82);line-height:1.6}

/* ---------- Steps ---------- */
.step-row{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.step-card{
  background:var(--card);border:1px solid var(--border);border-radius:var(--r-card);padding:22px;
  box-shadow:var(--shadow-card);transition:box-shadow .18s ease-out,transform .18s ease-out;
}
.step-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px)}
.step-dot{
  width:40px;height:40px;border-radius:50%;background:var(--primary-soft);color:var(--primary);
  display:inline-flex;align-items:center;justify-content:center;font-weight:700;font-variant-numeric:tabular-nums;
  margin-bottom:14px;
}
.step-card h3{font-size:16.5px;font-weight:600}
.step-card p{margin-top:8px;font-size:14px;color:var(--muted)}
.step-line{margin-top:14px;height:3px;border-radius:2px;background:linear-gradient(90deg,var(--primary) 0%,rgba(44,110,170,.15) 100%)}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:900px}
.faq-item{
  background:var(--card);border:1px solid var(--border);border-radius:14px;overflow:hidden;
  transition:border-color .18s,box-shadow .18s;
}
.faq-item:hover{border-color:rgba(44,110,170,.3)}
.faq-item[open]{background:#F7F9FC;border-color:rgba(44,110,170,.35);box-shadow:var(--shadow-card)}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:14px 20px;font-size:16px;font-weight:600;cursor:pointer;list-style:none;
}
.faq-q::-webkit-details-marker{display:none}
.faq-q::after{content:"+";font-size:22px;line-height:1;color:var(--primary);transition:transform .2s ease-out}
.faq-item[open] .faq-q::after{transform:rotate(45deg)}
.faq-a{padding:0 20px 18px;font-size:15px;line-height:1.8;color:var(--muted)}

/* ---------- CTA ---------- */
.cta-card{
  background:var(--card);border:1px solid var(--border);border-radius:20px;padding:32px;
  box-shadow:var(--shadow-card);display:grid;grid-template-columns:minmax(0,1fr) auto;gap:26px;align-items:center;
}
.cta-card h2{font-size:clamp(22px,2.4vw,28px);font-weight:600;line-height:1.35}
.cta-card p{margin-top:10px;font-size:15px;color:var(--muted);max-width:640px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}
.privacy-note{margin-top:22px;display:flex;flex-wrap:wrap;gap:12px 26px;font-size:13px;color:var(--muted)}
.privacy-note span{display:inline-flex;align-items:center;gap:7px}
.privacy-note i{color:var(--primary)}

/* ---------- Related ---------- */
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.rel-card{
  display:block;background:var(--card);border:1px solid var(--border);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--shadow-card);color:var(--ink);
  transition:box-shadow .18s ease-out,transform .18s ease-out,border-color .18s;
}
.rel-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px);border-color:rgba(44,110,170,.3);color:var(--ink)}
.rel-card img{width:100%;aspect-ratio:16/9;object-fit:cover;background:#EEF3F9}
.rel-body{padding:18px 20px 22px}
.rel-body h3{margin-top:12px;font-size:17px;font-weight:600;line-height:1.45}
.rel-body p{margin-top:8px;font-size:14px;color:var(--muted)}
.rel-more{margin-top:14px;display:inline-flex;align-items:center;gap:7px;font-size:13.5px;font-weight:600;color:var(--primary)}

/* ---------- Footer ---------- */
.site-footer{background:#fff;border-top:1px solid var(--border);padding:52px 0 0;margin-top:20px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:28px}
.footer-col p{font-size:14px;color:var(--muted);line-height:1.8}
.footer-col h4{font-size:14px;font-weight:700;margin-bottom:14px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col ul a{font-size:14px;color:var(--muted)}
.footer-col ul a:hover{color:var(--primary)}
.footer-bottom{
  margin-top:38px;border-top:1px solid var(--border);padding:18px 0 26px;
  display:flex;flex-wrap:wrap;gap:10px 20px;justify-content:space-between;font-size:13px;color:var(--muted);
}

/* ---------- Modal ---------- */
.modal-mask{
  position:fixed;inset:0;z-index:100;background:rgba(23,32,46,.48);
  display:flex;align-items:center;justify-content:center;padding:20px;
  opacity:0;visibility:hidden;transition:opacity .2s ease-out;
}
.modal-mask.is-open{opacity:1;visibility:visible}
.modal{
  position:relative;width:100%;max-width:480px;background:#fff;border-radius:20px;padding:26px;
  box-shadow:0 30px 70px -30px rgba(23,32,46,.55);transform:translateY(10px);transition:transform .22s ease-out;
  max-height:92vh;overflow-y:auto;
}
.modal-mask.is-open .modal{transform:translateY(0)}
.modal-close{
  position:absolute;top:16px;right:16px;width:36px;height:36px;border-radius:50%;
  border:1px solid var(--border);background:#fff;color:var(--muted);cursor:pointer;
  display:inline-flex;align-items:center;justify-content:center;
}
.modal-close:hover{color:var(--primary);border-color:rgba(44,110,170,.45)}
.modal h3{font-size:20px;font-weight:700;padding-right:36px}
.modal-sub{margin-top:8px;font-size:13.5px;color:var(--muted)}
.form-grid{margin-top:20px;display:flex;flex-direction:column;gap:14px}
.field{display:flex;flex-direction:column;gap:7px}
.field label{font-size:13.5px;font-weight:600;color:var(--ink)}
.field input,.field select,.field textarea{
  width:100%;min-height:44px;padding:10px 13px;border:1px solid var(--border);border-radius:var(--r-btn);
  background:#fff;font-size:14.5px;transition:border-color .16s,box-shadow .16s;
}
.field textarea{min-height:88px;resize:vertical;line-height:1.7}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(44,110,170,.14);
}
.field.is-error input,.field.is-error select{border-color:#D9534F;box-shadow:0 0 0 3px rgba(217,83,79,.12)}
.check-row{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--muted);line-height:1.65}
.check-row input{width:18px;height:18px;min-height:auto;margin-top:2px;accent-color:var(--primary);flex:0 0 auto}
.form-tip{font-size:12.5px;color:var(--muted)}
.success-box{text-align:center;padding:18px 6px 6px}
.success-box i{font-size:40px;color:var(--success)}
.success-box h4{margin-top:14px;font-size:19px;font-weight:700}
.success-box p{margin-top:10px;font-size:14px;color:var(--muted)}

/* ---------- Responsive ---------- */
@media(max-width:1100px){
  .nav-chip{padding:0 11px;font-size:13.5px}
}
@media(max-width:1023px){
  .nav-chips{display:none}
  .burger{display:inline-flex}
  .nav-actions{margin-left:auto}
  .split-layout{grid-template-columns:1fr}
  .summary-card{position:static}
  .stat-band{grid-template-columns:repeat(2,minmax(0,1fr));gap:26px}
  .stat-item:nth-child(3){padding-left:0;border-left:0}
  .step-row{grid-template-columns:repeat(2,minmax(0,1fr))}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px}
  .cta-card{grid-template-columns:1fr}
}
@media(max-width:767px){
  .hint-head{display:none}
  .hint-row{grid-template-columns:1fr;gap:8px;padding:16px}
  .entry-item{flex-direction:column;gap:12px}
  .entry-link{align-self:flex-start}
}
@media(max-width:639px){
  .container{padding:0 16px}
  .section{padding:48px 0}
  .nav-panel{padding:9px 11px;gap:10px}
  .brand-sub{display:none}
  .brand-name{font-size:14px}
  .nav-actions .btn-primary{display:none}
  .page-hero{padding:26px 0 34px}
  .stat-band{grid-template-columns:1fr 1fr;padding:26px 20px;border-radius:16px}
  .step-row{grid-template-columns:1fr}
  .related-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .cta-card{padding:24px 20px}
  .cta-actions .btn{width:100%}
  .modal-mask{align-items:flex-end;padding:0}
  .modal{border-radius:20px 20px 0 0;max-height:92vh;padding:24px 20px 28px}
}
@media(prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
  html{scroll-behavior:auto}
}